Mitosis is known as the reduction division because it results in cells that have half the number of chromosomes as the parent cell.
What is meiosis?Meiosis is an order of cell division in which the chromosome number in the cells reduces upshot in haploid cells. Meiosis is called reduction division because the integer of chromosomes in the daughter cells is half that of the parent cell. · Meiosis and its importance. Meiosis is sometimes called "reduction division" because it reduces the number of chromosomes to half the normal figure, Meiosis is referred to as reduction division because the number of chromosomes in the daughter cells has been lower. Meiosis is called reduction division because of the figure of chromosomes.
So we can conclude that Meiosis is a type of cell division in which the chromosome number in the cells reduces by half that resulted in the production of haploid number of chromosomes.
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describe the human life cycle, using the words mitosis, meiosis, sperm, egg, zygote, and fertilization.
Human life is the biological process that starts when a human egg is fertilized by a human sperm and continues as a living organism. It refers to a human person and is the biological development of the species Homo sapiens.
What is Mitosis?
A single cell divides into two identical daughter cells during the process of mitosis (cell division). One cell divides once into two identical cells during mitosis. It is mostly used for cell growth and replacement during times of stress. There are five distinct stages of mitosis:
Interphase, Prophase, Metaphase, Anaphase and Telophase.
What is Meiosis?
In sexually reproducing organisms, meiosis is a kind of cell division that results in a reduction in the number of chromosomes in gametes (the sex cells, or egg and sperm). Body (or somatic) cells in humans are diploid, meaning they have two sets of chromosomes (one from each parent).
What is sperm?
A sperm is a cell which is produced in the sex organs of a male animal and can enter a female animal's egg and fertilize it.
What is egg?
Eggs are formed through the process of meiosis. Each egg is haploid, it contains a single copy of each chromosome with the sex chromosome always an X chromosome.
What is zygote?
The fusion of both the male and female gamete results into a zygote. It is the first cell formed leading to a human life. Zygote is unicellular
What is fertilization?
A single cell is created during fertilization when a man's sperm and a woman's egg come together. It's one of the initial steps to becoming pregnant.
Therefore, the process begins from mitosis to fertilization and leading to a new human life
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mutation rate and mutation frequency match the description with either mutation frequency or mutation rate. 1. likelihood a gene is altered by a new mutation. (click to select) 2. number of new mutations in a given gene per cell generation. (click to select) 3. number of mutant genes divided by total number of genes within a population. (click to select) 4. affected by natural selection and genetic drift.
1. Likelihood a gene is altered by a new mutation. (mutation rate)
2. Number of new mutations in a given gene per cell generation. (mutation rate)
3. Number of mutant genes divided by total number of genes within a population. (mutation frequency)
4. Affected by natural selection and genetic drift. (mutation frequency)
What is the difference between mutation rate аnd mutation frequency?The mutаtion rаte is the number of mutаtions per cell division. Becаuse the cell populаtion is so lаrge, the number of cell divisions is аpproximаtely equаl to the number of cells in the populаtion (N). The vаlue of h cаn be determined by а fluctuаtion test.
The mutаtation frequency is simply the rаtio of mutаnts / totаl cells in the populаtion. This cаn be determined by simply plаting out аliquots of а culture аnd counting the number of mutаnts thаt аrise аnd the number of cells plаted. The mutаtion frequency is much eаsier to meаsure but mаy show lаrge fluctuаtions depending upon when the first mutаtion аppeаred in the populаtion.
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Consider a relation representing the present position of molecules in a closed container. The attributes are an id for the molecule, the x, y, and z coordinates of the molecule, and its velocity in the x, y, and z dimensions. What fd’s would you expect to hold? what are the keys?.
The functional dependencies that can be held are as follows:
{PX, PY, PZ} ----> VX
{PX, PY, PZ} ----> VY
{PX, PY, PZ} ----> VZ
A functional dependency is a constraint that is typically used to specify the relationship that exists between two distinct sets of attributes, wherein one set is able to accurately and uniquely determine the actual value of the other sets. This definition of functional dependency can be found here.
The molecule's velocities would be VX, VY, and VZ in this scenario, while the coordinates of the molecule would be PX, PY, and PZ. As a result, the following are examples of functional dependencies:
{PX, PY, PZ} ----> VX{PX, PY, PZ} ----> VY{PX, PY, PZ} ----> VZThe following sequence of keys in the R can be used to obtain the molecule on the closed surface:
PX, PY, PZVX, VY, VZ.The term "superkeys" refers to a collection of properties that can be used to hold a key, such as molecules, dimensions, and velocities. As a result, the following is the list of superkeys:
PX, VX, VY, VZ.
PY, VX, VY, VZ.
PZ, VX, VY, VZ.
In conclusion, when attributes are added to a primary key, a superkey can be created.
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(complete question)
Consider a relation representing the present position of molecules in a closed container. The attributes are the ID for the molecule, the X, Y, and Z coordinates of the molecule, and its velocity in the X, Y, and Z dimensions. Refer to the X, Y, and Z coordinates as PX, PY, and PZ respectively, and the X, Y, and Z velocities as VX, VY, and VZ respectively.
a) What functional dependencies do you expect to hold?
b) What are the keys?
c) Other than the keys list three superkeys.
d) Other than the keys how superkeys are there?
n cloning experiments of frogs, nuclei were removed from intestinal cells of tadpoles and transplanted into zygotes whose nucleic had been removed. a small percent of these zygotes developed into normal frogs, suggesting that
This is Nuclear transplantation,
Nuclear transplantation was developed 50 years ago in frogs.
Nuclear transplantation, test whether nuclei from differentiated cells remain genetically equivalent to zygotic nuclei.
nuclear transplantation originally described by Briggs and King
it showed that the nuclei of some intestinal epithelial cells from feeding tadpoles, after transplantation into enucleated eggs, could develop into normal feeding tadpole
The results from the cloning experiments in frogs indicated that nuclei gradually lose potency during development from embryonic to adult cells.
Also we can say, it is equally possible that there are many cloned animals are in fact derived from the nuclei of less differentiated adult cells such as adult stem cells.
These cells may be more easily reprogrammed than the terminally differentiated cells and also may support development of a clone at a very higher efficiency.
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in a particular plant, leaf color is controlled by gene locus d. plants with at least one allele d have dark green leaves, and plants with the homozygous recessive dd genotype have light green leaves. a true-breeding dark-leaved plant is crossed with a light-leaved one, and the f1 offspring is allowed to self-pollinate. the predicted outcome of the f2 is diagrammed in the punnett square shown in the figure below, where 1, 2, 3, and 4 represent the genotypes corresponding to each box within the square. which of the boxes marked 1-4 correspond to plants with dark leaves?
Boxes 1,2 and 3 correspond to plants with dark leaves
What is self pollination?
The movement of pollen from an anther of a flower to its stigma or, occasionally, to another bloom that is genetically identical (as of the same plant or clone)
The four processes that make up the most generic version of this process are pollination, germination, ovule penetration, and fertilization.
What is homozygous recessive genotypes?
Two recessive alleles are present in a homozygous recessive genotype. In the field of genetics, this is denoted by two identical lowercase letters, such as dd. This demonstrates that the genes passed down from each parent were recessive. DD is homozygous dominant having dark green leavesdd is homozygous recessive having light green leavesMaking a Punnett square of alleles-DD, ddDD, Dd
Dd, dd
Hence box 1 have homozygous dominant genotype, box 2 and 3 have heterozygous genotype and box 4 have homozygous recessive genotype
Therefore, Box 1, 2and 3 correspond to the plants having dark leaves
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you decide to introduce a species of lizard to an island where they were not previously found. you decide to introduce 50 individuals. what effect would mutations definitely have on the lizard population? select only one answer choice. group of answer choices mutations will likely introduce new alleles to the population. mutations will likely increase average fitness in the population. mutations will likely decrease average fitness in the population. mutations will cause dramatic changes in allele frequencies.
Mutations will cause dramatic changes in allele frequencies, this effect will be definitely visible.
Mutations are the changes in DNA sequence that occur during transmission of genetic material during reproduction. These changes are responsible for diversity in genetic sequence and hence formation of new alleles.
The effect of these alleles can be visible as phenotypes or difference in protein structures which may result in abnormality. Genetic drift is the change in frequency of allele randomly, due to mutation. It occurs through generations and is a mechanism of evolution. The phenomenon is common in small population and hence there will be dramatic change in allele frequencies.
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calculate the binding energy per nucleon of an al-27 nucleus given the following masses: : 26.981541 amu; : 1.007838 amu; : 1.008665 amu.
The Binding Energy per Nucleon is 8.33 MeV with the given information. Electron= 26.981541 amu, Proton = 1.007825 amu, Neutron = 1.008665 amu
The Binding Energy per Nucleon is determined by dividing the total Binding Energy of the nucleus by the total number of nucleons. Mathematically,
Binding energy per Nucleon= Binding Energy/ Total number of nucleons
E=mc²
Step 1: Calculate mass defect (Δm)
The following information is provided in the question:
Mass of proton = mp = 1.007825 amu
Number of protons in Al-27 = 13
So, the mass of total protons = mp = 13.101725 amu
Mass of neutron = mn = 1.008665 amu
Number of neutrons in Al-27 = 14
So, the mass of total neutrons = mn= 14.121310 amu
Atomic mass of Al-27 = A = 26.981541 amu
Thus, the mass defect can be calculated as,
The mass defect (Δm) is defined as the difference between the combined mass of nucleons and the atomic mass of the given element, i.e.
Δm=mp+mn−A
Δm= 0.241492 amu
Total binding energy (E) = 931.5 MeV/amu
binding energy, E= 0.241494 amu* 931.5 MeV/amu
=224.95 MeV
Step 3: Calculate Binding Energy per Nucleon
We have the following values:
Total binding energy, E = 224.95 MeV
Total number of nucleons in Al-27 = (no. of n + no. of p) = 27
Thus,
Binding Energy per Nucleon= Binding Energy/Total number of nucleons
=224.95 MeV/27
= 8.33 MeV
The complete question is:
Calculate the binding energy per nucleon of an Al-27 nucleus given the following masses:
Electron= 26.981541 amu
Proton = 1.007825 amu
Neutron = 1.008665 amu
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Lancelets display how many of the four major characteristics of the phylum chordata?.
Lancelets display all four major characteristics of the phylum Chordata.
The order Amphioxiformes includes approximately 32 species of fish-like maritime chordates known as "lancelets." They are widespread throughout the world and can be found in the sand in tropical and temperate waters.
Like all cephalochordates, the lancelet has a head. The four essential characteristics of chordates remain in adult lancelets: pharyngeal slits, which filter out food particles, receive water from the mouth. a notochord, a hollow nerve cord on the dorsal side, and a tail. The atriopore is where filtered water leaves the body and collects in the atrium.
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two parts of your brain that are critical to regulating circadian rhythm are the hypothalamus and the group of answer choices pineal body. amygdala. cerebellum. brain stem.
Two parts of your brain that are critical to regulating circadian rhythm are the hypothalamus and the Pineal body.
Your hypothalamus, a structure deep in your brain, acts as your body's clever control coordinating middle. Its principal function is to hold your body in a solid kingdom known as homeostasis. It does its job through immediately influencing your autonomic frightened device or through handling hormones.
The function of the hypothalamus is to maintain your body's internal stability, which is called homeostasis. To try this, the hypothalamus facilitates stimulate or inhibit many of your frame's key tactics, such as:
* Heart rate
* Blood strain.
Hypothalamus performs a critical role in many vital functions, along with:
1) Releasing hormones.
2) Maintaining daily physiological cycles.
3) Controlling urge for food.
4) Managing sexual behavior.
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in an alpha helix,a.side chain residues point up and down the axis of the helix.b.the oxygen of the carbonyl carbon in a peptide bond points out toward the exterior of the helix.c.there are five residues per helical turn.d.there are usually many proline residues present.e.the helix is right-hande
In an alpha helix, the helix is right handed.
What is an alpha helix?
It is a rod like structure, where the inner section is a tightly coiled chain. The side chains extend in an outward direction in a helical array. In order to stabilize, the alpha helix takes advantage of the hydrogen bonding between the groups CO and NH of the main chain.
The alpha helix is most frequently used for interactions between DNA-protein interfaces that are sequence specific.
The alpha helix’s size is the same as the width of the major groove of DNA, which makes sure they fit tight together. At the same time, the side chains on the helix, which are protein, probe available base pairs.
Hence, the helix is right handed in an alpha helix.
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protein shape is crucial to its proper function. students have difficulty grasping this idea and how the specific sequence of amino acids determines the shape and how that, in turn, affects protein function. as an example, sickle cell disease is a lethal disorder caused by just a single amino acid change in the primary structure of the protein hemoglobin. briefly explain how the words tasty and nasty can serve as a good analogy for a teacher trying to explain this concept to students.
The words tasty and nasty serve a good analogy for explaining the concept or protein shape and its essentiality for the function. This is because the word tasty creates image of some delicious food in the mind. However, replacing just one letter 't' from the word with 'n' changes the entire meaning and depiction. This is how the primary structure of proteins functions. Change in a single amino acid can change the complete primary sequence.
Amino acids are the organic molecules that are essential for protein formation in the living organisms. The basic structure of amino acids i s composed of a amino group, a carboxylic group, a hydrogen atom and a variable R group all attached to the alpha carbon atom.
Primary structure of proteins is composed of a linear chain of sequence of amino acids all boned together by peptide bonds. The primary structure sequence is very crucial for the structure and function of the protein.
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Carbohydrates and fats both??
can be used as an energy source by organisms
can be bonded together to construct DNA molecules
are made up of the glucose monomer
are monomers that can be made into large polymer chains
Please Helpp!! ASAP
Answer:
they can be used as any of the options
Review the student data. Which trials, if any, indicated that osmosis took place?
Responses
A vinegar and blue distilled water vinegar and blue distilled water
B 10% salt water and blue distilled water10% salt water and blue distilled water
C vinegar, syrup, and blue distilled water vinegar, syrup, and blue distilled water
D blue distilled water
The trials that indicated that osmosis took place is: vinegar and blue distilled water; option A.
What is osmosis?Osmosis is a process by which molecules of water are transported from one region to another.
Osmosis is defined as the process by which water molecules move from a region of low solute concentration to a region of high solute concentration through a semi-permeable membrane.
An example of osmosis taking place is when water molecules move hypotonic solution such as distilled water into vinegar a hypertonic solution.
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The equalizing temperature changes in response to changes in external forces of the boundary conditions of climate. What is this about?.
Climate sensitivity is about equalizing temperature changes in response to changes in external forces of the boundary conditions of climate.
The increase in global temperature that results from doubling the amount of carbon dioxide in the atmosphere above pre-industrial levels is commonly used to describe climate sensitivity. When doubling, carbon dioxide would be at about 520 parts per million (ppm), up from about 260 ppm before the industrial era. When compared to levels in the atmosphere prior to humanity beginning to burn copious amounts of fossil fuels in the 1800s, carbon dioxide and other greenhouse gases are multiplied by two to define climate sensitivity.
Climate sensitivity can be assessed using observed ocean heat absorption, observed temperature rise, and modeled or real-world radiative forcing. To determine climate sensitivity, the data are connected using a straightforward energy balance model.
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Which statement forms part of cell theory
Explanation:
There are three principles of cell theory
all organisms are composed of one or more cellsThe cell is the basic unit of structure and organizationcells arise from pre-existing cellshowler monkeys (from the genus alouatta) are a species of primate that are found in central and south america. these primates are arboreal quadrupeds, and they have a prehensile tail. howler monkeys weigh about 6 kilograms (13.3 lbs) and their molars have long crests and cusps that are sharp and pointy. based on these characteristics, howler monkeys most likely have a higher percentage of what type of food in their diet?
Answer: Meat, Fish, and hard fruits.
Explanation:
griffith's experiment. why did an injection of both living iir cells and dead iiis cells kill the mice when each of those cells individually did nothing? 2 avery's experiment. why were no iiis cells found in the mixture containing deoxyribonuclease, but they were found in the mixtures containing ribonuclease or protease?
Detected in mixtures containing ribonuclease or protease. R strain or heat killed S strain in mouse deaths.
What carry out all cells?All cells contain the following four components: (1) a plasma membrane, an outer layer that separates the cell's interior out of its environment; (2) cytoplasm, an internal region that resembles jelly and contains other cellular components.
Identify the smallest cell.The parasitic bacterium Mycoplasma gallicepticum is believed to be the tiniest known organism capable of independent development and reproduction. It lives in the pulmonary, genital, and urine systems of primates. The cell type used in the investigation is called mycoplasma. Its diameter is 0.0001 mm.
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In a paragraph or two describe the different types of consumers, including the type of food each consumer eats and their position in the food chain.
Herbivores and carnivores are different types of consumers that eat plants and meat, respectively. The carnivore animals are located at higher levels in the food chain.
What is the ecology food chain?The food chain is a series of interconnected organisms in a given ecosystem for which energy flows between different trophic levels. In the food chain, herbivore animals are located only up from producers since they consume plants.
Therefore, with this data, we can see that the ecology food chain is composed of different levels and herbivores represent the second trophic level because they eat plants (producers).
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the genetics of eye color is not yet fully understood. there are multiple pigments and interaction between alleles at play, but we will look at a simplified example. in europeans, b is dominant and results in brown eyes, while b is recessive and results in blue eyes. in individuals with the bb genotype, 85 percent have brown eyes, 14 percent have green eyes, and 1 percent have blue eyes. what is the penetrance of the b pigment allele?
Green is a dominant color to blue eyes, and recessive to brown eyes
Chromosome 15 and Chromosome 19 both include eye color genes.
Human eye color is determined by three genes: EYCL1 (gey) for green/blue eyes, situated on chromosome 19, EYCL2 (bey1) for brown eyes, and EYCL3 (bey2) for brown/blue eyes, also found on chromosome 15.
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Which sentence from "Putting the Brakes on Driverless cars" BEST support the inference that driverless cars could give rise to new safely issues that are potentially worse than current safety issues?
A: "It seems that people have a genuine dependence on technology in everyday life."
B: "Designers claims that they will eliminate the need for human drivers and prevent traffic collisions."
C: "First, drivers will likely be less aware of their surroundings than if they had been driving all along."
D: "While great advancements do help society, the driverless car is not one that needs to be pursued."
B. Designers claims that they will eliminate the need for human drivers and prevent traffic collisions."
Our autonomous vehicles will be trained to steer clear of crashes, particularly with people. However, what if a woman with a stroller suddenly jumps out into the road and the automobile does not have time to stop? The auto industry is well aware of all these ethical concerns, which is why Daimler, the owner of Mercedes-Benz, is hosting the first-ever conference on "Autonomous Driving, Law, and Ethics" this fall and manufacturers are consulting philosophers and ethicists.
However, consensus thinking is not a skill that philosophers are recognized for, even if it will be necessary to address these problems at a corporate level.
Nobody is naive enough to think that law-abiding autonomous cars, with all of its cameras, sensors, radars, and faster response times than a human, won't cause accidents—90% of which are now caused by driver mistake.
On rare occasions, they will crash, possibly killing someone. Several of the ones undergoing testing in the US have already been in accidents.
According to Ben Howarth, policy advisor at the Association of British Insurers, "there are significant practical and legal difficulties that need to be addressed, notably around who would ultimately be responsible for an autonomous car.
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name the four main components of macconkey agar. which makes the agar selective? which component makes the agar differential? for which organism type is it selective? for which group is it differential
MacConkey agar (MAC) is selective and differential bacterial culture media.
was, developed by Alfred Theodore MacConkey in 20th century.
It contains the essential nutrients required for microorganism growth.
MacConkey agar contains 4 components-
1. lactose,
2. bile salts
3. crystal violet
4. neutral red
Bile salts and crystal violet act as selective agents and they make the agar selective
Selective because it is selective to gram negative bacteria.
example, staphylococcus gives pale pink color in M.A because it is able to grow in this medium.
Differential because as it contains lactose it differentiates between gram negative lactose fermenter and gram-negative non-fermenters.
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Mary uses the process of baking a cake as a model to help her friend understand how genes function in people. The ingredients in Mary’s cake recipe are:
Flour
Milk
Eggs
Baking powder
Sugar
Butter
Vanilla
The cake recipe provides directions for how to mix the ingredients together, the temperature of the oven, and the length of time the cake needs to bake. The end result is a plain, yellow cake.
Use Mary’s model to explain the process of how an observable trait (such as curly hair or brown eyes) happens in people. Begin your explanation with your answer to part (a)
The cake recipe that Mary uses in baking the cake can model a gene. The ingredients that Mary uses represent the amino acids used in making the protein. The plain, yellow cake then represents an observable trait (such as curly hair or brown eyes)
What are genes?Genes are units of inheritance in living organisms.
Genes are segments of DNA that contain information about how a character will be. The information contained in that gene will be used to design and build that character.
In living organisms, these traits or characters are expressed as proteins, Hence, genes are used to make proteins that determine a given character.
Genes usually have alternative forms known as alleles.
The characters controlled by alleles may be dominant characters or recessive characters.
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the most basic functions of the body, such as breathing, blood pressure, and swallowing, are controlled by the:
The most basic functions of the body, such as breathing, blood pressure, and swallowing, are controlled by the Brain stem.
The bottom portion of the brain that connects to the spinal cord is called the brain stem (part of the central nervous system in the spinal column). The majority of the body's autonomic processes, which are vital to life, are controlled by the brain stem. These include the heartbeat and respiration.
Numerous essential aspects of life, including breathing, consciousness, blood pressure, heart rate, and sleep, are controlled by it. Numerous important clusters of white and gray matter can be found in the brainstem. Numerous significant brainstem nuclei are formed by the nerve cell bodies that make up the grey matter in the brainstem.
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Which molecule is the source of basic material used for the production of ATP in the Kreb Cycle?
A. NADH
B. Oxygen
C. Water
D. FADPH
The basic material used for the production of ATP in the Krep cycle is Oxygen
oxygen is a an atomic number 8 chemical element that is a colorless, odorless reactive gas that is necessary for life.
What is the kreb cycleThe citric acid cycle, sometimes referred to as the Krebs Cycle, is the s Since the Krebs cycle is an aerobic process that needs oxygen to function, it starts by combining carbon and oxygen in the respiration pathway: second significant step in the aerobic
The second important phase in the aerobic oxidation of glucose inside living organisms is the Krebs Cycle, sometimes referred to as the citric acid cycle. The majority of creatures rely mostly on glucose as a fuel source; nevertheless, they must break down this glucose and store the energy in molecules like ATP and other compounds.
The Kreb's Cycle can be utilized by organisms in the presence of oxygen.
Because the NADH and [FADH2] generated by the Kreb's Cycle can be oxydized in the electron transport chain (ETC), which replenishes the supply of NAD+ and [FAD], oxygen is necessary.
However, the Kreb's Cycle, commonly known as the TCA cycle, is where most of a n organism's energy comes from. An aerobic procedure called the Kreb's Cycle has eight distinct phases
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a researcher has a dna sample that was generated from the mrna extracted from a cell line. the researcher wants to determine specifically how much of gene a was expressed in that cell line. what is one experiment that could be done to quantitively measure the expression of gene a?
To quantitatively measure the expression of gene A generated from the m-RNA extracted from a cell line, the researcher should use real-time PCR.
Cell line is defined as the the population of cells generated from a single cell that continues to divide may be indefinitely. Cell lines are formed from the primary cell cultures. Cell line are used for various purposes like vaccine production, drug testing, antibody production, etc.
Real-time PCR is the type of PCR where the amount of product accumulated in the real time as the mechanism of production of the product is being carried out. The quantification is done along with each cycle of the PCR.
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Categorize the given minerals into metallic and non-metallic minerals? • Iron,gold,quartz,calcite,petrolium,copper,aluminium,diamond,emerald,rubies,topaz,coal,sapphires.
Iron, Gold, Aluminum, Sapphires and Copper are the metallic minerals while Quartz, Calcite, Diamond, Rubies, Emerald, Topaz, Coal and Petroleum are the non-metallic minerals.
What are metals?Metal is a solid material which is typically hard, shiny, feasible, malleable and ductile. They are the good conductor of heat and electricity. Examples of metals are gold, silver, aluminum, copper, iron etc.
Metals are made up of atomic materials such as electrons, neutrons and protons. It can be categories according to their physical as well as chemical properties.
Physical properties of metals are:
1.Luster
2.Malleability
3.Conductivity
4.Ductility
5. Solid
Metals are used in various purposes like for making wires and sheets. It is used in making automobiles machineries . These metals are also used in making water boiler because of its property being good conductor of heat.
Thus, iron, Gold, Aluminum, Sapphires and Copper are the metallic minerals while Quartz, Calcite, Diamond, Rubies, Emerald, Topaz, Coal and Petroleum are the non-metallic minerals.
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a woman has a family history of breast cancer. she has her brca1 and brca2 genes tested, and no detrimental mutations are found. she is so relieved to know that she will not develop breast cancer. is she correct that she will not develop breast cancer?
No, she is not correct that she will not develop breast cancer.
She is inaccurate in announcing that she can be able to now no longer get breast most cancers with 100% certainty. Although, on the grounds that her BRCA1 and BRCA2 alleles have been located to haven't any mutations signalling breast cancers, which means that there is probably a totally small risk that she ought to nevertheless broaden breast most cancers.
Even though it's far relatively not going that she can be able to broaden breast cancers, there may be nevertheless a totally small risk that it is able to occur.
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Briefly
explain how the carbon
and oxygen cycles are
dependent on one another.
Explanation:
Oxygen cycle refers to the movement of oxygen through the atmosphere, biosphere and the lithosphere. T
a mutation in the dna changes an adenine to a guanine. this adenine was the a in the aug of a start codon for a gene. what process or processes would this mutation impact?
Mutations must occur in cells that produce the next generation and affect the hereditary material in order to affect an organism's descendants.
Mutations can have an effect on an organism by altering its physical characteristics (or phenotype) or by altering the way DNA codes genetic information (genotype). When mutations occur, they can either terminate (kill) an organism or be partially lethal. Mutations can occur as a result of errors in DNA replication during cell division, mutagen exposure, or viral infection. Germline mutation(those that occur in eggs and sperm) can be passed down to offspring, whereas somatic mutations (those that occur in body cells) cannot.
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one traditional explanation for why hominins develop bipedalism is that is helped them to see prey and avoid predators in the high savanna grass. what is one major problem with this idea?
One major problem with the idea of bipedalism is that it has made climbing significantly more difficult.
The first is that it makes climbing much more challenging. In an arboreal environment, hominids are less secure without the capacity to grab with their feet. Therefore, a behavioural shift toward carrying dependent kids until they could walk must have been one of the adaptations to bipedalism.
The savannah theory, sometimes known as the savanna hypothesis, postulates that the evolution of human bipedalism was caused by our ancestors' shift from an arboreal to a savanna lifestyle. The theory holds that hominins fled the woodlands that had been their natural habitat millions of years ago and adapted to their new environment by walking upright.
To know more about bipedalism, refer to the following link:
https://brainly.com/question/13022921
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