Which statement describes the relationship between chromosomes, genes, and alleles? A. Alleles transfer genes to the appropriate location within a chromosome. B. Alleles are sites on a chromosome that genes bind to. C. Chromosome's have mutated parts called genes. These mutations are caused by alleles. D. A chromosome's specific section is called a gene. Alleles are variations of a gene.

Answers

Answer 1

Answer: D is the best of the options given. Alleles are different versions of a gene. A given gene is localized (located) in a specific location on a chromosome. A chromosome consists of genes. There are many different versions of genes out there. (i.e. the gene for hair color could have an allele coding for black, blond, red, brown, etc. colored hair. That allele would be where you find the gene for hair color on the chromosome.) Hope this helps! :)

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According to Figure 13-2, if 25 percent of the parent material remains in a rock sample, how many half-lives have occurred?

Answers

Answer: Number of half lives occurred 2.

Explanation:

Let the initial concentration be x

Concentration left=25 % of the x= $x(25)/(100)=(x)/(4)$

To calculate the number of half lives, we use the formula:

$a=(a_o)/(2^n)$ ..(1)

where,

a = amount of reactant left after n-half lives = 0.0495 moles

$a_o$ = Initial amount of the reactant = 0.7924 moles

n = number of half lives

$(x)/(4)=(x)/(2^n)$

taking log both sides

$\logx-\log4=\logx-n\log2$

$\log4=n\log2$

$\log(2)^2=2\log2=n\log2$

n = 2

Number of half lives occurred 2.

2 half lives.A half life is when a substance is broken down by half. 100% -> 50% etc.

A plant with the genotype TT is called _____.

homozygous
heterozygous
hybrid

Answers

If a genotype has two of the same alleles, as in two capital letters (two dominant alleles) or two lowercase letters (two recessive alleles), it is homozygous. If it was Tt, had one recessive allele and one dominant allele, it would be heterozygous.

When an individual has two of the same allele, whether dominant or recessive, they are homozygous.
so the answer is homozygous :)))
i hope this is helpful
have a nice day

How might your study of biology help inform you about your lifestyle choice

Answers

A study of biology will help inform you about your lifestyle choices, because it will lead you to better understand the ways in which your choices about what you eat and how much you exercise actually affect the internal processes in your body and the drastic effect that you can have on them.

Which statement best describes how the evolution of pesticide resistance occurs in a population of insects?A. Individual members of the population slowly adapt to the presence of the chemical by striving to meet the new challenge.
B. All insects exposed to the insecticide begin to use a formerly silent gene to make a new enzyme that breaks down the insecticide molecules.
C. Insects observe the behavior of other insects that survive pesticide application, and adjust their own behaviors to copy those of the survivors.
D. A number of genetically resistant pesticide survivors reproduce. The next generation of insects contains more genes from the survivors than it does from susceptible individuals.

Answers

Answer:

D. A number of genetically resistant pesticide survivors reproduce. The next generation of insects contains more genes from the survivors than it does from susceptible individuals.

Explanation:

Insect populations already have some insects with pesticide resistance genes. Exposure of insects to pesticides results in the natural selection of these insects with pesticide resistance as they are able to survive and reproduce in the presence of pesticides whereas the other insects die. The resistant insects leave more progeny resulting in the evolution of insect population with increased frequency of pesticide resistance gene.

What other factors could have cause a decrease in the hare population

Answers

to many natural predators
to many hare's and not enough food source. No food=starvation=death.

Which statement regarding genes and evolution is true?A. If an organism has a mutation, it will be less "fit" (less able to reproduce) than other organisms.
B. Today's plethora of microorganisms is the result of an extremely brief period of genetic recombination events.
C. Mutations function to prevent the offspring of an organism from evolving.
D. Random, heritable genetic mutations are a source of genetic variation. This variation is necessary for natural selection to occur.

Answers

The statement which is true regarding genes and evolution is as follows:

Random, heritable genetic mutations are a source of genetic variation. This variation is necessary for natural selection to occur.

Thus, the correct option is D.

What is Genetic mutation?

Genetic mutation may be defined as sudden, stable, and inheritable alterations in the genetic material of an organism. It is considered one of the most useful events for evolution to occur.

Random mutation takes time but they are the least effective and non-influential. Such type of mutations are easily heritable and induces genetic variation among individuals of the same species.

As a result of this, as time passes such mutations become a base for natural selection to occur and allow the favorable variation to survive and reproduce effectively.

Therefore, the correct option for this question is D.

To learn more about Genetic mutations, refer to the link:

brainly.com/question/15304171

#SPJ6

Answer:

the answer is D! :)

Explanation:

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