The complementary strand sequence of the DNA sequence G-A-T-T-A-C-A is C-T-A-A-T-G-T.
By applying the base pair rule:
A with T: purine adenine (A) always pairs with pyrimidine thymine (T)
C with G: pyrimidine cytosine (C) always pairs with purine guanine (G)
(A = T, G = C).
G ⇒ CA ⇒ TT ⇒ AT ⇒ AA ⇒ TC ⇒ GA ⇒ TComplementary DNA, better known by the abbreviation cDNA (from complementary DNA), is synthetic/artificial single-stranded DNA copied from mRNA strands using the PCR technique by utilizing the reverse transcriptase enzyme.
Learn more about complementary DNA at bhttps://brainly.com/question/19670398
#SPJ4
two ways of dealing with any kind of pollution include prevention and cleanup: would include tactics that stop pollutants and wastes from even entering the environment; would include tactics that help mitigate the environmental effects of pollutants that have already entered the environment.
Two ways to deal with any kind of contamination are: Prevention and Cleansing.
What is pollution?Pollution is the introduction of contaminants into the natural environment that cause harmful changes. Pollution can take the form of any matter or energy. The contaminants that constitute environmental pollution include not only naturally occurring contaminants but also foreign matter/energy. Vehicle emissions, fuel oil and natural gas used to heat homes, by-products of manufacturing and power generation, especially coal-fired power plants, and smoke from chemical production are the main sources of anthropogenic air pollution. .
There are the following tactics for dealing with any kind of contamination.
Prevention includes tactics that prevent pollutants and waste from entering the environment in the first placeCleanup includes tactics that help reduce the environmental impact of contaminants that have already entered the environment.To know more about pollution control, visit:
https://brainly.com/question/15708835
#SPJ4
when both glucose and lactose are present in the bacterial cell, the level of transcription of the lac operon is low. is low levels of lac operon expression in this environment advantageous or disadvantageous to the cell? why?
In this condition, low levels of lac operon expression in this environment advantageous to the cell. The absence of permease production results in a low amount of lac operon as Lactose must be transported from the media into the cells via permeases. Lactose won't function as an inducer because it can't get inside the cell.
What is lac operon?It is an operon needed for the transportation and metabolism of lactose in E. coli and several other enteric bacteria.
The preferred carbon source for E. coli is glucose. But if glucose is not available, E. coli has another choice: It can convert lactose into glucose and galactose by this process.
What is the regulatory mechanism of lac operon when both lactose and glucose are present ?By binding to the repressor, lactose and stops it from binding to the region of the operator, if both glucose and lactose are present. As a result, the restriction on lac gene transcription is removed, and some mRNA is generated. However, the requirement for -galactosidase and galactoside permease is minimal because glucose is still available.
To know more about E.coli please click here https://brainly.com/question/1658836
#SPJ4
another important aspect of meiosis and the sexual life cycle is the role these processes play in contributing to genetic variation. although offspring often resemble their parents, they are genetically different from both of their parents and from one another. the degree of variation may be tremendous.
No heredity only
only genetic variation: none
Both: all
-fertilization
-metaphase 1→anaphase 1
-metaphase 2→anaphase 2
-crossing over
-DNA replication
How does meiosis fit into the sexual life cycle?Meiosis is a type of cell division that results in the formation of four gamete cells and a halving of the parent cell's chromosome count. In order to reproduce sexually, egg and sperm cells must be produced.
In sexually reproducing organisms, traits are passed down from one generation to the next through the processes of DNA replication, careful homolog pairing during crossing over, chromosome alignment and separation in meiosis I and II, and fertilization.
In sexually reproducing organisms, traits are passed down from one generation to the next through the processes of DNA replication, careful homolog pairing during crossing over, chromosome alignment and separation in meiosis I and II, and fertilization.
In contrast to offspring of asexual reproduction, offspring of sexual reproduction are genetically distinct from one another and from both of their parents. Some of the mechanisms that result in genetic variation include the production of recombinant chromosomes as a result of crossing over, the independent assortment of homologous chromosomes in meiosis I, the separation of sister chromatids (which are no longer identical due to crossing over) in meiosis II, and the haphazard fusion of male and female gametes during fertilization.
To know more about meiosis visit:
https://brainly.com/question/29383386
#SPJ4
What are the effects of food safety practices?.
For the purpose of preventing the spread of pathogens from food handlers to consumers, good personal hygiene and food handling techniques are crucial.
Food safety is still a major issue in both developed and developing countries for consumers, food businesses, and food control agencies. Food-borne diseases (FBDs) are linked to outbreaks, pose a threat to the safety of the world's public health, and are a global issue. A growing public health concern is food safety. Significant rates of morbidity and mortality are brought on by FBD. It is challenging to estimate the incidence and costs of food-borne illnesses globally. However, according to studies, 2.1 million people die annually as a result of foodborne illness without getting hygiene food.
The WHO claims that the lack of infrastructure, poor understanding, and unhygienic food handling practices contribute to the seriousness of FBDs in developing countries.
Learn more about hygiene using this link:
https://brainly.com/question/9612460
#SPJ4
In the classic experiment conducted by hershey and chase, why was the pellet radioactive in the centrifuge tube that contained bacteria with viruses?.
membranes of cells. -The pellet included the radioactive viruses (coats and DNA). The pellet contained the radioactive protein coats of the viruses.
In their investigation of the topographic distribution of a radioactive virus following intravenous injection into mice, Libby and Madison1 of the Stamford Research Laboratories, American Cyanamid Company, provided a potential new approach to immunology research. The Born2 and Stanley method was used to create radioactive viruses tobacco mosaic virus (TMV). 3 Seedling tobacco plants, which were between 2 and 3 inches tall, were injected with the tobacco mosaic virus before being put into separate brown glass bottles containing 120 cc of nutritional solution. Then, 18 mg. of sodium biphosphate (Na2HP*O4) containing around 278 microcuries of radioactive phosphorus was added to each container (P32).
Learn more about radioactive viruses by using this link:
https://brainly.com/question/14514840
#SPJ4
the dna strand that is replicated in discontinuous segments is known as the strand
The DNA strand that is duplicated from a template strand in the 3' to 5' orientation is known as the lagging strand. It is produced in pieces.
What is the name of the DNA strand that is broken?tardy strand
The "leading strand" and "lagging strand" are terms used to describe the DNA strands that are continually and intermittently produced, respectively. "Okazaki fragments" are the short, lagging strand pieces.
What does the phrase "discontinuous DNA replication" mean?intermittent replication the process of creating a new strand of a DNA molecule that is capable of replication out of a number of little pieces that are later connected. This method is only used to synthesis one of the new strands, the so-called lagging strand.
To know more about dna strand visit :-
https://brainly.com/question/10894314
#SPJ4
On January 26, Nyree Co. borrowed cash from Conrad Bank by issuing a 45-day note with a face amount of $225,000. a. Determine the proceeds of the note, assuming the note carries an interest rate of 8%. b. Determine the proceeds of the note, assuming the note is discounted at 8%.
If the note has an interest rate of 8%, the revenues will be equal to the $225,000 face value of the note.
The nominal value is another name for the face value. It is a currency's value. It is merely a security's notional value and revenues.
According to the information provided, Nyree Co. issued a 45-day note with a face value of $225,000 to Conrad Bank to borrow money. As a result, the note's revenues will be $225,000, which is its face value.
Learn more about revenues
https://brainly.com/question/28558536
#SPJ4
_____________ refers to the specific laws and guidelines that govern what nail technicians can and cannot do.
Scope of practice refers to the specific laws and guidelines that govern what nail technicians can and cannot do.
Who are nail technicians?A manicurist, often known as a nail technician, is a professional whose job it is to trim, file, and shape the nails of clients. This effect can be accomplished by embellishing the nails with a combination of coloured lacquer, transfer designs, gems, and glitter.
One of the most important qualities of a great nail technician is patience, as well as the ability to work hard and pay strict attention to detail.
Scope of practice refers to the specific laws and guidelines that govern what nail technicians can and cannot do.
Learn more about nail technicians, here:
https://brainly.com/question/29422857
#SPJ1
What system facilitates the movement of water between spheres through the process of transpiration? a. geosphere b. hydrosphere c. atmosphere d. biosphere please select the best answer from the choices provided a b c d
The system facilitates the movement of water between spheres through the process of transpiration is called the biosphere. The correct answer is option(d).
Transpiration is the process of water flow through a plant and allure dissolution from flying parts, to a degree leaves, stems and flowers. Water should be for plants but only a tiny amount of water distracted for one ancestry is secondhand for progress and absorption. The staying 97–99.5% is absent by happening and guttation. The system facilitates the movement of water between spheres through the process of transpiration is called the biosphere.
The biosphere, also known as the earth's system of natural resources, is the general total of all environments. It can still be dubbed the district of growth on Earth. The residence is nearly an exclusive arrangement concerning a matter, accompanying the littlest inputs and outputs.
To know more about transpiration refer to: https://brainly.com/question/13891305
#SPJ4
Complete each sentence by dragging a word to the proper position. Then arrange the sentences into the order of occurrence of motor impulses in the ANS This parasympathetic neurotransmitter causes a in heart rate and contractility Action potentials arriving at the sinoatrial and atrioventricular nodes of the heart cause to be released. Also known as the division, the parasympathetic nervous system has fibers exiting the CNS at the medulla oblongata. Action potentials travel down the preganglionic nerve fibers of the towards the effector organs. The impulse arrives relatively quickly at the heart, as parasympathetic postganglionic fibers are compared to sympathetic postganglionic fibers. These impulses arrive at the cardiac plexus where secretion of acetychline creates an action potential in the neuron.
Completed each sentence by dragging the words ( decrease, acetylcholine, craniosacral, vagus nerve, short, postganglionic) to the proper positions.
Order of occurrence of motor impulses:
1. Also known as the craniosacral division, the parasympathetic nervous system has fibers exiting the CNS at the medulla oblongata.
2. Action potentials travel down the preganglionic nerve fibers of the vagus nerve toward the effector organs.
3. These impulses arrive at the cardiac plexus where secretion of acetychline creates an action potential in the postganglionic neuron.
4. The impulse arrives relatively quickly at the heart, as parasympathetic postganglionic fibers are short compared to sympathetic postganglionic fibers.
5. Action potentials arriving at the sinoatrial and atrioventricular nodes of the heart cause acetylcholine to be released.
6. This parasympathetic neurotransmitter causes a decrease in heart rate and contractility.
Question in proper format is attached.
You can also learn about vagus nerve from the following question:
https://brainly.com/question/12738044
#SPJ4
for each of the following substances, indicate whether they would become part of the glomerular filtrate in a normal functioning kidney. answer yes if the substance becomes part of the filtrate or answer no if the molecule does not become part of the filtrate
Yes, the substance is included in the filtrate. The molecule does not mix with the filtrate, no. The substance does indeed mix with the filtrate. Water, nitrogenous waste, and nutrients are all parts of the blood that can be filtered, and these components are transferred into the glomerulus to create the glomerular filtrate.
The glomerular filtrate's function is what.An examination of your kidney function using blood is called a glomerular filtration rate (GFR). The glomeruli in your kidneys are microscopic filters. These filters aid in the blood's fluid and waste removal. The amount of blood that passes through these filters each minute is measured by a GFR test.
Water, nitrogenous waste, and nutrients are all parts of the blood that can be filtered, and these components are transferred into the glomerulus to create the glomerular filtrate. Blood cells, albumins, and platelets are non-filterable blood components that will exit the glomerulus through the efferent arteriole.
To know more about glomerular filtrate's visit:
https://brainly.com/question/29482967
#SPJ4
What are the 5 vestigial structures?.
Vestigial structures include ear muscles, wisdom teeth, the appendix, the tail bone, body hair, and the semilunar fold in the corner of the eye.
Vestigial structures are structures that have no apparent function and appear to be remnants of a previous ancestor. Vestigial structures include the human appendix, a snake's pelvic bone, and the wings of flightless birds.
Vestigiality is the retention of genetically determined structures or attributes that have lost some or all of their ancestral function in a given species during the process of evolution. In general, assessing vestigiality must rely on comparison with homologous features in related species. Mammals have a vestigial tail bone. Other mammals use their tails for balance, but when humans started walking, the tail became obsolete and was evolved into a fused vertebrae called the coccyx.
To learn more about Vestigial structures, here
https://brainly.com/question/12681281
#SPJ4
Where do the elements in the human body come from?.
The elements of the periodic table, and where they originate, are detailed in this image above. The vast majority of the human body, including the majority of our oxygen, carbon, nitrogen, phosphorous, calcium, and iron, all owe their primary origin to massive stars that have gone supernova.
The hydrogen in your body, present in every molecule of water, came from the Big Bang. There are no other appreciable sources of hydrogen in the universe. The carbon in your body was made by nuclear fusion in the interior of stars, as was the oxygen.
Most of the elements of our bodies were formed in stars over the course of billions of years and multiple star lifetimes. However, it's also possible that some of our hydrogen (which makes up roughly 9.5% of our bodies) and lithium, which our body contains in very tiny trace amounts, originated
drag the resting membrane determinants to their appropriate locations in the figure. answers may be used once, or not at all.
The variations in ion concentration between intracellular and external fluids, as well as the relative permeabilities of the plasma membrane to various ion species, are the fundamental determinants of the resting membrane potential.
What three things enable us to preserve resting membrane potential?The quantity of ions both within and outside of the cell, the permeability of the cell membrane to those ions (ion conductance through specific ion channels), and the activity of electrogenic pumps all play major roles in determining membrane potentials in cells.
What is a normal neuron's resting membrane potential?An average neuron's resting membrane potential is -70 mV. (millivolts). A change in a neuron's resting membrane potential signals the start of all neuronal actions.
To know more about resting membrane visit :-
https://brainly.com/question/8438145
#SPJ4
he compound a-tocopherol, a form of vitamin e (atlas m3), is a powerful antioxidant that may help to maintain the integrity of biological membranes. the light-induced reaction between duroquinone and the antioxidant in ethanol is bimolecular and diffusion controlled, estimate the rate constant for the reaction at 298K, given tat the viscosity of ethanol is 1.06 x 10-3 kg m-1 s-1
The rate constant for the reaction is 3.7×10⁻¹⁰m.
What is rate constant?The equation that expresses the relationship between the rate of a chemical reaction and the concentrations of the reacting substances contains a proportionality constant called the rate constant, also known as the specific rate constant.
In this exercise we have vitamin E
There is a study of reaction of photochemically excited duroquinone with the antioxidant in ethanol
Following photochemical excitation of duroquinone, a bimolecular reaction occurred at a diffusion-limited rate.
(a) Here we have to estimate rate constant for a diffusion-limited reaction in ethanol
We have datas for:
R = 8.314K⁻¹η
T = 298Kmol⁻¹
η = 1.06 x 10-3 kg m-1 s⁻¹
K = 8RT/3η
K = 8 × 8.314 × 298/ 3η
K = 6.23×10⁹dm³mol⁻¹s⁻¹
Here we have to estimate critical reaction distance if the sum of diffusion coefficients is 1×10⁻⁹m²s⁻¹
Firstly we will write equation for kk and from it express and calculate R*
K = 4πR*DNₐ
R* = 2.77×10⁹×10⁻³/4π 1×10⁻⁹×6.23×10²³
R* = 3.7×10⁻¹⁰m.
To know more about rate constant visit:
https://brainly.com/question/20305871
#SPJ4
compare the different regulatory mechanisms controlling the activity of hexokinase i in the muscle tissue and hexokinase iv in the liver. why is it helpfui to have a the liver hexokinase working less effectively at low glucose concentrations that than the muscle hexokinase?
Glucose-6-phosphate inhibits hexokinase I, however as HK is allosterically inhibited by its own product, G6P, failure to eliminate G6P from the cell would result in HK inhibition, the enzyme lacks an inhibitor.
What are the similarities and differences between hexokinase I and IV?Glucose 6-phosphate is known as hexokinase. Other hexoses besides D-glucose that it can phosphorylate include D-fructose, 5-keto-D-fructose, 2-deoxy-D-glucose, D-mannose, and D-glucosamine. Hexokinase I, II, III, and IV are the four primary varieties. Hexokinase I through III, the first three hexokinases, are present in all body cells, while hexokinase IV, also known as glucokinase, is exclusively present in the liver and -pancreatic cells. Hexokinase and Glucokinase Similarities. Two kinds of enzymes that are involved in glycolysis are hexokinase and glucokinase. They are isoenzymes, which are enzymes with a unique structure and identical properties. Both processes produce glucose 6-phosphate from glucose. They are the glycolysis's rate-limiting enzymes. Since G6P cannot freely diffuse outside of the cell, these enzymes trap glucose inside the cell. The difference between hexokinase and glucose kinase is a type of hexokinase that is specifically found in the liver and catalyzes the phosphorylation of glucose in metabolic processes. Hexokinase refers to any of a group of enzymes that speed up the phosphorylation of hexoses (as in the formation of glucose-6-phosphate from glucose and ATP) in carbohydrate metabolism.Since they carry out the same metabolic reaction but are encoded by different polypeptides, hexokinase I and hexokinase IV are isozymes. Both enzymes are situated in a way that is particular to the tissue.
To know more about hexokinase, visit:
https://brainly.com/question/15580505
#SPJ4
place the cell images into the correct order on the picture to outline the sequence of events associated with spermatogenesis.
Spermatogenesis, the formation and maturation of sperm cells within the testes, the male reproductive organs. The testes are made up of a lot of tiny walls.
Which of the following correctly shows the arrangement of the male reproductive organs as sperm travels through the duct system?Consequently, the ideal sperm transportation route is: Vas deferens, Epididymis, Efferent ductules, and Rete testis.
Which of the following accurately describes the testicular structure?Answer and justification The seminiferous tubule-filled lobules of the testis, the germinal epithelium-lined seminiferous tubules that produce sex cells (sperm cells), and the seminiferous tubules that merge to form the rete testis, which connects to the epididymis, can all be used to explain the structure of the testis.
To know more about spermatogenesis visit :-
https://brainly.com/question/14546768
#SPJ4
during a pertussis infection, the pathogenic bacterium bordetella pertussis produces tracheal cytotoxin, which destroys cilia. which of the following would most likely result from ciliary destruction?
Mucus accumulation in the respiratory tract is the result from ciliary destruction.
What are the functions of mucous?Upper respiratory tract is lined with mucous membranes that secrete mucous. A thin film of fluid called the airway surface liquid (ASL), which is also known as mucus, covers the luminal surface of the airway. The primary purpose of mucus is to shield the lung from extraneous substances and chemicals entering the lung through muco-ciliary clearance. Water, ions, and several kinds of macromolecules make up mucus, some of which have protective properties like anti-microbial, anti-protease, and antioxidant activity. The viscoelastic feature of mucus, which is essential for efficient mucociliary clearance, is mostly caused by mucus glycoproteins or mucins. The human airways include at least eight mucin genes, each of which has the ability to produce a different type of mucin molecule. Currently, neither the precise structures of mucin proteins .Although it appears likely that different types of mucins are involved in different roles and might also be linked to specific airway diseases, the airway surface liquid (ASL), often known as mucus. The tight associations between mucins and the different macromolecules found in ASL seem to imply that a mixture of these components, rather than just these individual ones, determines the defensive function of ASL.
To know more about the muco-ciliary system ,visit:
https://brainly.com/question/7268794
#SPJ4
Which phase of interphase is characterized by a period of cell growth and the production of molecules for dna replication?.
The S phase of interphase is characterized by a period of cell growth and the production of molecules for DNA replication.
During the S phase, the cell is actively growing and synthesizing macromolecules such as proteins, lipids, and carbohydrates. This is necessary for the cell to prepare itself for the next stage of cell division. In addition, the cell is also synthesizing the components necessary for DNA replication. This includes nucleotides, proteins, and enzymes. The proteins are responsible for unwinding the DNA molecule, while the enzymes help to copy the genetic information from one strand of DNA to the other, in a process known as semi-conservative replication.
Once the DNA has been replicated, the cell is ready to move on to the G2 phase. During this phase, the cell continues to synthesize proteins and other macromolecules, as well as synthesizing the components necessary for mitosis. The G2 phase is also the time when the cell can repair any damage to its DNA.
In conclusion, the S phase is a critical period of cell growth and the production of molecules for DNA replication. During this phase, the cell is synthesizing the components necessary for DNA replication, as well as proteins and other macromolecules needed for the next stage of cell division. The S phase is therefore essential for the successful completion of the cell cycle.
Learn more about interphase at : https://brainly.com/question/20223797
#SPJ4
a cell having any number of complete chromosome sets or an individual organism composed of such cells is called:
Euploid refers to a cell with any number of full chromosome sets or an organism made up of such cells.
The condition of having a chromosome number namely an exact diversified of the haploid number for the variety. A Euploid fetus is a fetus that has the correct number of chromosomes and is thought-out a sane fetus. Euploid or rational embryos are the ones we have in mind transfer for our cases.
A chromosome is a long DNA particle accompanying part or all of the hereditary material of a creature. In most chromosomes the lengthened thin DNA fibers are glazed accompanying bundle proteins; in eukaryotic cells, the ultimate main of these proteins are the histones. In persons, each cell usually holds 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, named autosomes, look unchanging in two together men and women.
To know more about chromosome refer to: https://brainly.com/question/13148765
#SPJ4
this is a close-up view of a frog's skin. it is infected with a certain type of organism. two sporangia containing numerous zoospores are visible. what is the phylum of the organism?
The frog skin shows two sporangia which contain many zoospores. This infection is caused by a type of Chytridiomycota organism.
In addition to parasites on protists and plants, there are members of Chytridiomycota that are parasitic on animals. namely for example Batrachochytrium dendrobatidis which attacks frogs, and B. salamandrivorans which infects salamanders.
B. dendrobatidis infection can cause crusting, damage, and flaking of the amphibian skin. Whereas the skin of amphibians plays a role in maintaining homeostasis or body balance, especially for expelling gas and removing excess water. So that if the skin hardens, then the homeostatic regulation of the amphibian becomes disrupted, and can be fatal, namely death.
Learn more about Chytridiomycota parasites at https://brainly.com/question/3640997
#SPJ4
consider how the action potential that initiates contraction is delivered to the muscle cell. which of the choices below correctly describes how an action potential generated at the neuromuscular junction (nmj) is converted to excitation in the muscle fiber?
ACh is released into the synaptic cleft in response to an action potential in the motor neuron. Gradient potentials are started when ACh binds to sarcolemma receptors.
What triggers a muscle contraction when an action potential occurs?The ryanodine receptors (RyRs) in the SR also open and release calcium as a result of the action potential's invasion of the T-tubules, which opens the L-type calcium channels and stimulates contraction.\
Sodium ions within a muscle cell start the action potential. When a muscle contracts, calcium ions are released into the muscle cell, strengthening the muscle. This occurs after the cell becomes positive, starting the action potential.
ACh is released into the synaptic cleft in response to a motor neuron action potential.
To know more about action potential visit:
https://brainly.com/question/4305583
#SPJ4
when assessing a 17-year-old for nuchal rigidity, you gently raise his head off the examination table. he involuntarily flexes his hips and knees. to confirm your suspicions associated with this positive test, you would also perform a test for the sign.
You gently lift a 17-year-head old's off the examination table when testing him for nuchal rigidity. He bends his knees and hips unintentionally. You would conduct a test for the kernig sign in addition to the positive test in order to confirm your suspicions.
What is meningitis-related nuchal rigidity?Nuchal rigidity is a third indicator of meningitis. Nuchal rigidity is the inability to flex the neck forward because the neck muscles are stiff. Similar to Kernig's sign, studies have revealed that many meningitis patients lack the Brudzinski sign or nuchal rigidity.
The most crucial indicator of meningitis is stiffness in the neck. The inflamed cervical nerve roots and meninges are stretched when the neck is flexed. Due to the protective muscle spasm caused by this, the neck becomes stiff.
To know more about knees and hips visit:
https://brainly.com/question/28992842
#SPJ4
one of the fingerlike projections of the small intestinal mucosa that tremendously increase its surface area for absorption is called a/an:
Answer:
villi
Explanation:
microscopic finger -like projections are called villi which increase the surface area to help with absorption.
assuming that a strand of dna is not composed of equal amounts of a, g, c, and t, which of the following equations is appropriate when considering dna base composition?
Because the nitrogenous bases of these nucleotides form hydrogen bonds that make the two strands of DNA complementary, there is a T for every A (and a For G for every C).
How many different base combinations can a DNA sequence contain?Carries genetic information based on the base sequences that are given to progeny during reproduction; acts as a template for exact copies to be made during the interphase's synthesis stage; and contains instructions for putting together proteins from amino acids. DNA has four potential bases: A, G, C, and T. two strands of a double helix A and T are generally paired as complementary bases.
What is the name given to particular nitrogenous base sequences in DNA?Genes are unique nitrogenous base sequences that encode certain proteins or regulatory RNA molecules. two strands of a double helix A and T are generally paired as complementary bases.
To know more about DNA visit:-
https://brainly.com/question/4410226
#SPJ4
in the north pacific, sea otters are keystone predators. a reduction in their numbers has resulted in what changes in the marine community?
In the north pacific, sea otters are keystone predators. A reduction in their numbers has resulted in decreased community diversity changes in the marine community.
Decreased community diversity means that the allelic variety of genes within the species is limited and therefore there is not much variation between individuals. This may mean less opportunity to adapt to environmental changes. Loss of genetic diversity often occurs due to habitat loss.
Biodiversity, or the diversity of all life on Earth, has been declining at an alarming rate in recent years, largely due to human activities such as land-use change, pollution, and climate change.
Biodiversity supports the health of our planet and directly affects all of our lives. Simply put, declining biodiversity means millions of people face a future in which food supplies become more vulnerable to pests and diseases, and freshwater is either unstable or scarce.
Learn more about Biodiversity from:
https://brainly.com/question/13073382
#SPJ4
predict what the iki (lugol's) test results would look like for the following controls and samples. drag the correct test results onto the spot plate. test results may be used more than once, and not all test results will be used.
The prediction on the the iki (lugol's) test results would look like for the following controls and samples are:
positive control: purplenegative control: yellowstarch + amylase: yellowstarch + boiled amylase: purpleWhat does a positive iodine test result mean?A color change from violet to black indicated a positive iodine test result (there is starch present); a negative result (there is no starch present) indicated the iodine solution was yellow.
In order to detect cervical dysplasia when examining the cervix colposcopically, the Lugol's iodine test is a frequently used diagnostic tool.
The IkI test is an indicator test used to ascertain the amount of starch present in a sample. The triiodide anion solution turns blue-black when starch is included.
Hence, The active component of IKI is iodine. This solution contains it in the aqueous form that is utilized in experiments.
Learn more about controls from
https://brainly.com/question/5711964
#SPJ1
if your right visual cortex stopped functioning, what parts of your visual field would be messing
Damage to the primary visual cortex, also known as V1, in the area of vision, but not to any other cortical region, eliminates visual awareness and causes chronic blindness.
If the right optic tract is damaged, which area of the visual field would be lost?left visual sphere
For instance, if the optic tract on the right is cut off, the left visual field loses vision (that is, blindness in the temporal visual field of the left eye and the nasal visual field of the right eye).
Right visual cortex lesions can result in total blindness in the left hemifield, but they typically spare foveal vision. This is likely because the cortical foveal representation is so extensive that a single lesion is unlikely to completely wipe it out.
To know more about visual cortex visit:
https://brainly.com/question/10899519
#SPJ4
How is food protected from contamination?.
Clean and sanitize any surfaces and tools that come into touch with food often, such as cutting boards and knives.
Use different utensils and equipment for handling raw and ready-to-eat meals, or properly wash and sanitize them between handling the two types of food.Clean and sanitize any surfaces and tools that come into touch with food often, such as cutting boards and knives. Use different utensils and equipment for handling raw and ready-to-eat meals, or properly wash and sanitize them between handling the two types of food. Foods that are high in vitamins and minerals are known to as protective food. Fruits and vegetables are included. They maintain our health and shield us from illnesses. In order to avoid contamination and food-borne illness, food protection refers to the circumstances and procedures that maintain the quality of food.
Learn more about food
https://brainly.com/question/16065961
#SPJ4
Can You Identify The Plant Group To Which Each Of These Organisms Belongs? Drag Each Organism To The Appropriate Bin.
The Plant Group To Which Each Of These Organisms Belongs is: NOT a plant -charophyte algae, Nonvascular plant -bryophyte ,moss Seedless vascular plant -fern Gymnosperm -conifer, pine tree Angiosperm -pear tree, purple coneflower
Because of its movement, charophyte algae is not a plant.
Bryophytes are non-vascular plants that are an informal grouping of non-vascular land plant divisions such as liverworts, hornworts, and mosses.
A fern is a seedless vascular plant that reproduces by spore and does not have seeds or flowers.
Conifers and pine trees are examples of gymnosperms, a group of seed-producing plants.
Angiosperm is a flowering plant that produces seeds enclosed within a carpel. The angiosperms are a diverse group that includes herbaceous plants, shrubs, grasses, and the majority of trees, such as the purple coneflower and pear tree.
For more information on Plant groups, visit :
https://brainly.com/question/16066008
#SPJ4