a) An allele frequency changes in a population would indicate that evolution has occurred.
Allele frequencies in a population can shift by chance alone due to sampling error from generation to generation, and this is a phenomenon known as genetic drift. Genetic drift is a random process that can produce significant population changes quickly.Allele frequencies in a population are a reflection of genetic variety. Allele frequencies that fluctuate over time may be a sign of genetic drift or a population that has undergone new mutations.The population is evolving if the frequencies of alleles or genotypes differ from the value predicted by the Hardy-Weinberg equation. The allelic frequency is stable from generation to generation in populations that are in the Hardy-Weinberg equilibrium, and the distribution of alleles may be calculated.DISCLAIMER
Which event would indicate that evolution has occurred?
a) An allele frequency changes in a population.
b) An animal gets fat.
c) A white-eyed fly is born into a population of brown-eyed flies.
d) A new predator comes
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The muscle that aids in drawing the head back and elevating the shoulder blades is known as the?
The muscle that aids in drawing the head back and elevating the shoulder blades is known as the trapezius.
Trapezius Muscle:
The trapezius is a large muscle in your back. It forms a trapezoid shape at the back of your head and neck, continues across your shoulders, and to the center of your back.
The trapezius muscles also referred to as the "traps," are crucial for good posture. They protect the neck and spine, shift the shoulders, and lift the arms out to the sides. When you shrug or draw your shoulders back, we employ them.
Trapezius issues are uncommon but can happen. Any lesion to the cranial nerve XI, the spinal accessory nerve, can weaken or paralyze the trapezius muscle. Trapezius muscle tension occurs when the trapezius muscle is overextended. The muscle may rip under some circumstances.
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A team of researchers is diving to the ocean floor to study seaweed and fungi. which zone of the ocean are they going to explore? a. abyssal b. intertidal c. pelagic d. benthic e. deep
The abyssal zone is the zone of the ocean where seaweed and fungi are present.
What is abyssal zone?The abyssal zone is a layer of the ocean where seaweed and fungi are present. "Abyss" is a Greek word which means bottomless. This zone is located at the depths of 4,000 to 6,000 metres. So abyssal zone is the zone of the ocean where seaweed and fungi are present.The life that is found in the Abyssal Zone includes chemosynthetic bacteria, tubeworms, and small fish that are dark in color or transparent. It also includes sharks and invertebrates such as squid, shrimp, sea spiders, sea stars, and other crustaceansTo lean more about abyssal Zone from the given link
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Which process is used to remove bacteria, necrotic tissue, and organic debris from the root canal?
Debridement is the process used to remove bacteria, necrotic tissue, and organic debris from the root canal; option C.
What is the role of a dentist in tooth and gum care?A dentist is a professional who specializes in the care of the tooth and the gum.
Dentists are important healthcare professionals as they can perform several forms of surgeries to bring relief to patients with several dental issues.
Several branches of dentistry exists, one of which is endodontics.
Endodontics is the branch of dentistry that is concerned with the dental pulp and tissues surrounding the roots of a tooth.
One of the processes employed in endodontics is debridement.
Debridement involves the surgical removal of bacteria, necrotic tissue, and organic debris from the root canal.
In conclusion, dentists are concerned with dental health of individuals.
Endodontists are dentists who treat issues of the dental pulp and tissues surrounding the roots of a tooth.
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The complete question is:
Which process is used to remove bacteria, necrotic tissue, and organic debris from the root canal?
A. Obturation
B. Opening the canal
C. Debridement
D. Shaping
__________ always pairs with _________. a. adenine, guanine b. thymine, guanine c. guanine, cytosine d. cytosine, thymine
The correct option is (C) Guanine, Cytosine.
In DNA Adenine always pairs with thymine in base pairing, while guanine always couples with cytosine.
Base Pairing in DNA:
Two bases are referred to as a base pair when referring to a "rung of the DNA ladder." A sugar molecule, a phosphoric acid molecule, and a molecule known as a base make up a DNA nucleotide. The "letters" that make up the genetic code are the bases. Adenine, thymine, guanine, and cytosine are the compounds that are represented by the code letters A, T, G, and C in DNA, respectively.Adenine always pairs with thymine in base pairing, while guanine always couples with cytosine.Learn more about the Base Pair in DNA with the help of the given link:
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How many different genes are coordinately regulated by the gal4 transcriptional activator?.
Answer:
Four
(For the extra words limit)
What is the most common explanation for circadian rhythm dysregulation in modern society?
Answer choices:
We live in a society
Blue light from device screens
CLOCK gene mutations from plastics
The sun
The most common explanation for dysregulation of circadian rhythm in modern society is blue light from device screens
Blue light from device screensWhat happens if the circadian rhythm is dysregulated?The most frequent symptoms are insomnia and drowsiness, decreased vitality and performance, which may increase the risk of accidents at work, increased rate of breast, colorectal and prostate cancer, increased blood pressure, increased gastrointestinal disorders and problems reproductive.
What are the effects caused by blue light?Using electronics that emit blue light for more than 6 hours a day can cause headaches, eye strain and premature retinal aging. There are two types of blue light: turquoise and violet.
With this information, we can conclude that Circadian rhythms are physical, mental, and behavioral changes that follow a 24-hour cycle.
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A woman is heterozygous for a rare dominant autosomal genetic disease, neurofibromatosis. she marries a normal man (homozygous recessive for neurofibromatosis), who has red-green color blindness, an x-linked recessive trait. they have children. if the woman is homozygous for normal vision, what is the chance they will have a daughter with color blindness?
No daughter (0%) will have the color blindness.
How to make a cross to find the genotype of the offspring?Genotype of woman with normal vision = XX
Genotype of man with color blindness = XYᵇ
Gametes formed from woman = X and X
Gametes formed from man = Xᵇ and Y
Crossing both the parents (Using Punnett square):
X X
Xᵇ XXᵇ XXᵇ
Y XY XY
Out of the four progeny 2 are boys and 2 are girls.
Sons do not carry the gene for color blindness.
Daughters are the carrier for the color blindness.
No daughter will have the color blindness. They are the carriers for the disorder.
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The hormone that dominates during the alarm phase of the general adaptation syndrome (gas) is?
The hormone that dominates during the alarm phase of the general adaptation syndrome (gas) is adrenaline.
Produces CRH, which is then released, causing the pituitary to generate ACTH. Synthesizes and releases ACTH, which instructs the adrenal glands to release cortisol. Hormones important for the stress response are released. The adrenal medulla produces epinephrine, sometimes known as adrenaline. This is the first stage of global adaptation syndrome. Your body is currently alerting your brain that something is wrong. The body responds to the brain's message by releasing glucocorticoids and adrenaline, which are known as your "fight or flight" hormones. The general adaption syndrome has three stages: alarm, resistance, and fatigue. Alarm, fight, or flight is the body's first response to "perceived" stress.Learn more about hormones here brainly.com/question/4581245
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An abnormal accumulation of fluid in the intercellular spaces of the body that is localized or diffused is referred to as ___________.
An abnormal accumulation of fluid in the intercellular spaces of the body that is localized or diffused is referred to as Edema.
The medical term for swelling brought on by fluid becoming trapped in your body's tissues is edema. Edema can affect your face, hands, abdomen, and legs, but it most frequently affects your feet, ankles, and legs. Edema will make some body parts enlarge (swell), which can make it difficult for you to carry out your usual activities.
If you were sitting or standing for a long time, elevating the swollen area of your body or moving about will assist reduce swelling and make you feel better. Edema grading is a measure that's used to gauge how serious of an edoema diagnosis you have and how much fluid has accumulated in your tissues.
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What monosaccharides are formed when the disaccharide is hydrolyzed?
Two units of glucose as monosaccharides are formed when the disaccharide is hydrolyzed.
Disaccharides are sugars made up of two monosaccharide units connected by a glycosidic linkage, a carbon-oxygen-carbon bond. The anomeric carbon of one cyclic monosaccharide reacts with the OH group of another monosaccharide to generate this bond. The monosaccharide components of the disaccharides and the particular kind of glycosidic bond tying them together are different from one another.
Most frequently, partial hydrolysis of starch and glycogen results in the formation of maltose. It is frequently called malt sugar. Compared to sucrose, maltose is around 30% sweeter. Maltose and other disaccharides cannot be metabolised by the human body directly from food because their molecules are too big to fit past the intestinal wall's cell membranes.
The reaction is shown below;
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Internal and external information is brought to the brain in the process of _____.
Internal and external information is brought to the brain in the process of consciousness.
A brain function brought about by neural mechanisms is consciousness. The three main components of consciousness are representation by firing patterns in neuronal groups, binding of these representations into semantic pointers, and competition amongst semantic pointers.
Brain matter creates our consciousness and our capacity for awareness and thought through the use of electromagnetic radiation. In addition to processing sensory and motor information, the cerebral cortex also facilitates consciousness, or our capacity to think about ourselves and the outside world.
Therefore, Internal and external information is brought to the brain in the process of consciousness.
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Testing positive for the epstein-barr virus would most likely indicate a diagnosis of _____.
Testing positive for the Epstein-Barr virus would most likely indicate a diagnosis of infectious mononucleosis.
Why is Epstein-Barr virus (EBV) test done?The Epstein-Barr virus is a disease-causing agent that also causes infectious mononucleosis. It is mainly transmitted through saliva when people kiss, share food, or use the same utensils. Many people get EBV infection as children and show no symptoms. Most often affecting adults and teenagers, mononucleosis.
For the diagnosis of infectious mononucleosis, an EBV antibody test is typically not required. If you don't have a normal mononucleosis case or if your doctor suspects you may have another sickness brought on by EBV infection, you might need a test.
If you have mononucleosis symptoms but a negative test, or if you're pregnant and experiencing flu-like symptoms, you might also need to be checked. You could require a test if you have been exposed to someone who has mononucleosis but don't now exhibit any symptoms. Your doctor might need to run a test to see how well your immune system is functioning.
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A mutation in which one nucleotide in the dna sequence is substituted for another nucleotide is referred to as a ________ mutation
What are the three of the fundamental assumptions of biological theories of crime causation?
Three of the fundamental assumptions of biological theories of crime causation are:-
1. Those that attempt to differentiate among individuals on the basis of certain innate or inborn outward physical traits or characteristics;
2. Those that attempt to trace the source of differences to genetic or hereditary characteristics; and
3. Those that attempt to distinguish among individuals on the basis of structural, functional, or chemical differences in the brain or body.
Biological theories within the field of criminology attempt to explain behaviors which are contrary to societal expectations through examination of individual characteristics.
These theories are categorized within a paradigm called positivism (also known as determinism), which asserts that behaviors, especially law-violating behaviors, are determined by factors largely beyond individual control.
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Explain two ways in which the existence of green algae and land plants affected the early atmosphere.
Answer:
Producing oxygen
Explanation:
green algae and land plants affected the early atmosphere by producing oxygen, which paved the way for the evolution of eukaryotic organisms
Sorry that's all I can think of
The existence of green algae and land plants affected the early atmosphere is of existance of oxygen.
What is oxygen?Oxygen is the chemical element with the symbol O and atomic number 8. It belongs to the periodic table's chalcogen group and is a highly reactive nonmetal that quickly oxidizes most elements as well as other compounds to produce oxides.
The Earth's atmosphere is currently made up of 20.95% diatomic oxygen gas, though this has fluctuated significantly over a very long time. In the form of oxides, oxygen makes up over half of the Earth's crust.
The main constituent inorganic compounds of animal shells, teeth, and bone as well as several key types found in living organisms, such as proteins, nucleic acids, carbohydrates, and lipids, all contain oxygen atoms.
Therefore, The existence of green algae and lamnd plants affected the early atmosphere is of existance of oxygen.
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What would happen if a mutation occurred in dna such that the second codon of the resulting mrna were changed from ugg to uag?
No functional protein would be produced since translation would halt at the second codon.
Why does mutation occurs in DNA?A sector or patch of cells with defective function can result from a somatic mutation, a change in the DNA of a body cell of a multicellular organism that can be passed on to descendant cells by DNA replication. Any transcriptional or translational mistake may result in mutations occurring spontaneously. Spontaneous mutation is the term used to describe mutations that die on their own without being influenced by their environment.
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Features that result from wave deposition include
Select one:
a.
groins
b.
barrier islands
c.
sea walls
d.
sea stacks
Answer:
b.barrier islands
Explanation:
One advantage of branched sugar polymers is the availability of more ends for chemical reaction.
a. true
b. false
The one advantage of branched sugar polymers is the availability of more ends for chemical reactions. So, the statement is true.
What are branched sugar polymers?Polysaccharides are simply the monomers of thousands of monosaccharides units. The kind of polysaccharide formed will be based on the kind of monosaccharide units involved.
The branching of monomers helps in the formation of polysaccharides. Branching of glucose monomers in the formation of different polysaccharides. These are starch and cellulose present in plants and glycogen in animals.
These kinds of polysaccharides are made of a lot of monomers and that is caused by the branching. This kind of branching can also help in the addition of more monomeric units to make a longer polysaccharide chain.
Therefore, an advantage of branched sugar polymers is the availability of more ends for chemical reactions.
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Lava flows are typically finer grained (i. e. the rock is made up of smaller mineral grains) than intrusive igneous rocks. what is the principle reason for this?
Lava flows are typically finer grained (i. e. the rock is made up of smaller mineral grains) than intrusive igneous rocks because the extrusive magma cools quickly so the mineral grains do not have time to grow.
When lava comes out of a volcano and solidifies into extrusive igneous rock, the rock cools very quickly. Crystals inside solid volcanic rocks are small because they do not have much time to form until the rock cools all the way, which stops the crystal growth. Magma, called lava when molten rock erupts on the surface, cools and solidifies almost instantly when it is exposed to the relatively cool temperature of the atmosphere. Quick cooling means that mineral crystals don't have much time to grow, so these rocks have a very fine-grained or even glassy texture.
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Which tissue layer deep to the integument acts as a shock and thermal insulator?
Hypodermis deep to the integument acts as a shock and thermal insulator
The connective tissue that joins the dermis to underlying structures is the hypodermis, which is deep to the dermis of the skin. The hypodermis also contains adipose tissue for fat storage and defence.
The hypodermis performs similar protective roles to the skin: it binds the skin to the underlying structures so that the skin can move virtually freely over them; it stores fat to help minimise heat loss; and it serves as a shock absorber. This characteristic makes sure that blows only hurt the surface tissues of the body.
Therefore, Hypodermis deep to the integument acts as a shock and thermal insulator
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What characteristic of b. anthracis allows the bacterium to survive without water or nutrition?
Bacillus anthracis can survive in the absence of adequate nutrition due to its capacity to produce spores, which makes it dormant and non-motile.
Describe is the biology of Bacillus anthracis?The bacterium B. anthracis is a Gram-positive, rod-shaped, facultatively anaerobic, sporulating, and capsuled organism. It has a width of 1-1.2 m and a length of 3-5 m. It appears as a chain-like structure under a microscope. Despite being an aerobic organism, B. anthracis has the ability to sporulate, which allows it to exist in anaerobic conditions. In fact, it can persist as spores for a number of years in water, air, and soil. Spores are immune to the hostile environment and unaffected by high temperatures, pressure, chemicals, UV rays, and a lack of nutrients.Learn more about Bacillus antharcis here:
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What three key observations allowed darwin to deduce that natural selection is a primary driver of evolution?
What three key observations allowed darwin to deduce that natural selection is a primary driver of evolution?
Populations of organisms vary, more offspring are produced than can survive, and the relative frequency of favourable mutations rises with time.
What is natural selection?Natural selection is the variation in individual survival and procreation brought on by phenotypic variances. The evolution of a population's heritable features across generations is a fundamental mechanism of evolution. By contrasting it with artificial selection, which in his opinion is intentional and natural selection is not, Charles Darwin popularized the phrase "natural ."
Every population of organisms contains variation. This happens in part because an organism's genome might experience random mutations, which its descendants may inherit. Individuals' genetics and environments interact throughout their lifetimes to produce different phenotypes.
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What is a religious custom
When a custom contains a religious component and includes the communal expression of religious life outside of the Church's formal liturgy, it is referred to as a religious custom.
A custom is an action that is typically repeated in the same way on related occasions and is influenced by local tradition.
When it contains religious meaning and includes the community expression of religious life outside of the Church's formal liturgy, it is referred to as a religious custom.
It demonstrates how the objective salvific event permeates peoples' subjective experiences in various ways according to their age, country, and region.
Subjective piety is produced by those who have mystical religious tendencies.
Sermons, remembering a god or gods' deeds, sacrifices, festivals, feasts, trance, rituals, liturgies, ceremonies, worship, initiations, funerals, marriages, mediation, invocation, mediumship, music, art, dance, community service, or other aspects of human culture can all be included in a religion's practice.
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The psychoanalytic theory purports that gender typing occurs: _____
a) before birth.
b) because of biology.
c) unconsciously.
d) in response to rewards and punishment of imitation behavior
Answer:
C
Explanation:
The correct answer is C. unconsciously.
In the stomach, _______ participate in the chemical digestion of protein. gastric lipase and intrinsic factor hydrochloric acid and pepsin mucus and cholecystokinin all of the above
Migration of a random few individuals from one population to a new area to establish a new population is an example of:__________
Founder effect is the example of migration of a random few individuals from one population to a new area to establish a new population.Thus, option C is correct.
What is migration?
Migration is defined as movement of individuals from one place to another in search of employment and livelihood.Some people lives permanently after migration and some returns back to the native place.
Internal migration is the type of migration in which people migrate within state and country.
External migration is the migration to different state and country.
The phenomenon of moving into new place is known as immigration.
Seasonal migration is the migration in which animals or humans migrate in a particular season due to climatic condition.
Therefore,migration of a random few individuals from one population to a new area to establish a new population is an example of founder effect.
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The question is seems to be incomplete the question is may be like that
Migration of a random few individuals from one population to a new area to establish a new population is an example of _
A) bottleneck effect
B) mutation
C) founder effect
D) selection
To detect immunoglobulin m (igm)antibodies in an acute phase,blood should be collected in _____ days after the onset of infection.
To detect immunoglobulin m (IgM)antibodies in an acute phase, blood should be collected 7 days after the onset of infection.
IgM and IgG antibodies to SARS-CoV-2 may both be found shortly after infection. IgG is typically detectable for extended periods of time, but IgM is most effective for diagnosing recent infection and typically becomes undetectable weeks to months after infection. IgM antibody detection is frequently viewed as a sign of an acute infection. Due to cross-reactivity with IgM antibodies to other, closely related bacteria or other interfering chemicals, false-positive IgM findings are, nonetheless, frequently observed. A positive IgM result may not always indicate an "acute" infection, and additional testing (such as IgG testing) may be required to interpret results because IgM antibodies may be detectable for 2-4 months (or longer) after disease resolution. For many infections, the onset of a measurable antibody response is 5-7 days after the infection. If samples are taken before infection, the initial IgM test results may be negative. Antibody production Immunosuppressed patients may also continue to be seronegative.Learn more about antibodies here brainly.com/question/14081504
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In the dna isolation process, ________ is used to break down the protein complexes and allow the dna molecules to easily precipitate.
In the DNA isolation process, ice cold 95% ethanol is used to break down the protein complexes and allow the DNA molecules to easily precipitate.
What is separation and isolation of DNA fragments?
The cutting of DNA by restriction endonucleases results in the fragments of DNA. These fragments can be separated by a technique known as gel electrophoresis.Since, DNA fragments are negatively charged molecules they can be separated by forcing them to move towards the anode under an electric field through a medium/matrix.The most commonly used matrix is agarose which is a natural polymer extracted from sea weeds.The DNA fragments separate (resolve) according to their size through sieving effect provided by the agarose gel. Hence, the smaller the fragment size, the farther it moves.The separated DNA fragments can be visualised only after staining the DNA with a compound known as ethidium bromide followed by exposure to UV radiation (you cannot see pure DNA fragments in the visible light and without staining). We can see bright orange coloured bands of DNA in a ethidium bromide stained gel exposed to UV light.The separated bands of DNA are cut out from the agarose gel and extracted from the gel piece. This step is known as elution.The DNA fragments purified in this way are used in constructing recombinant DNA by joining them with cloning vectors.To learn more about DNA isolation process: brainly.com/question/18316109
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Which organelle modifies the contents within vesicles and then repackages them for export?
Golgi apparatus is the organelle which modifies the contents within vesicles and then repackages them for export.
The structure of the Golgi apparatus or Golgi complex is flattened, layered, sac-like organelle that looks like a stack of pancakes. It helps to move materials, which are proteins and other molecules, from one part of a cell to another.
Although it intercepts ER vesicles, modify the content for export, and repackage the material in a Golgi vesicle, which can be fuse with plasma membrane. This apparatus even receives proteins and lipids from the rough endoplasmic reticulum. It is because, it helps in transporting protein within or outside the cell.
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Given the parents aabbcc × aabbcc, assume simple dominance for each trait and independent assortment. What proportion of the progeny will be expected to phenotypically resemble the first parent?.
Answer:
sorry i don't know this answer of this question
