8. Complete this table to analyze the evolution of dark fur color in rock pocket mice....

8. Complete this table to analyze the evolution of dark fur color in rock pocket mice.

Answer these questions.

Describe the evidence for A, C and D.

A. How has mutation contributed to the evolution of dark fur color in rock pocket mice?

(A mutation is a change in a DNA molecule.)

How did the researchers establish that a mutation had occurred?

B. How does natural selection affect individual mice? Does an individual mouse change its characteristics as a result of natural selection?

The video describes the effects of natural selection on individuals, but does not present any supporting evidence (probably because the supporting evidence is indirect and somewhat complex).

Expert Solution

8.A. The mutation in the Mc1r - Melanocortin-1-receptor gene, which is responsible for the fur color in the rock pocket mice lead to the development of teh dark colored fur in these mice. Four mutations were observed in this gene of themice living on the dark lava. These mutations (to ensure survival) lead to greater production of melanin in these mice. The darker colored fur coat then produced secures them from predation.

B. An individual mice is not affected with the process of natural selection. Natural selection is a phenomenon which affects the entire populations over time. The individuals who are best adapted to their changing environment are selected while the others are eliminated.

An individual mice cannot change its characterstic as a result of natural selection. Rather the population of the mice with required suitable characteristics will increase over timw.

C. The researchers established that a mutation has occured by analysing the interaction of teh two proteins responsible for the distinction in melanogenesis in the mice.

gladiator answered 2 years ago

Dark fur is dominant in pocket mice. A true breeding dark fur mouse is mated with...

Dark fur is dominant in pocket mice. A true breeding dark fur mouse is mated with a true breeding light fur mouse. Their F1 offspring are mated with each other. (a) What is the probability that the first three F2 offspring have dark fur? (b) What is the probability that three out of five offspring will have dark fur? (c) The phenotypes for 50 F2 mice are 30 dark and 20 light. You want to test the goodness of fit...

Is light coat color in beach mice and rock pocket mice homologous or analogous? Explain your...

Is light coat color in beach mice and rock pocket mice homologous or analogous? Explain your reasoning, including a discussion of the genetic control of the trait.

Film Review: Rock Pocket Mice of the Desert Southwest 1. The rock pocket mice come in...

Film Review: Rock Pocket Mice of the Desert Southwest 1. The rock pocket mice come in two variations: a. Light mice which are found: _________________ b. dark mice which are found: _________________ 2. What organisms provide the selective force in the mouse population: 3. How did the dark mice originate? 4. What determines the value of a mutation? 5. What is the explanation for the dark mice having a light underbelly? 6. Mutation is a ____event; but ____ is not....

amSuppose you are studying a recently discovered population of rock pocket mice woth dark-colored fir that...

amSuppose you are studying a recently discovered population of rock pocket mice woth dark-colored fir that lives on volcanic rock. You take a DNA sample from a member of this new population and determine the DNA sequence of a gene known to play a role in fir color. The sequence you get is identical to that of the same gene in another rock pocket mouse population with dark-colored fur that lives on a different patch of volcanic rock. Which of...

In a population of mice, those with very light fur and those with very dark fur...

In a population of mice, those with very light fur and those with very dark fur are favored. Mice with medium fur are not favored. This is an example of what type of selection? 1. Stabilizing selection 2. Directional selection 3. Disruptive selection 4. Double selection

A female mouse that is heterozygous for fur color where dark fur is dominant to light...

A female mouse that is heterozygous for fur color where dark fur is dominant to light fur and homozygous dominant for long-tail length is mated with a male that is heterozygous for both traits. How many genotypes will be represented in the F1 generation? A. 1/32 B. 1/16 C. 1/8 D. 1/4 E. 1/2

In mice the loci for tail length, fur color and whisker shape are found on the...

In mice the loci for tail length, fur color and whisker shape are found on the same chromosome. Long tails (T) are dominant to short tails (t), brown fur (B) is dominant to white fur (b) and straight whisker (S) are dominant to curled whiskers (s). Mice that were homozygous dominant for all three characters were crossed with mice homozygous recessive for all three characters and all of the offspring had long tails, brown fur and straight whiskers. These F1...

1) Describe the experiment that tests the adaptive advantage of light vs. dark fur color in...

1) Describe the experiment that tests the adaptive advantage of light vs. dark fur color in Peromyscus polionotus. State the hypothesis correctly, describe the experiment, explain the results, and state the conclusion.

Complete the following table. All binary numbers are 8-bit signed integers. (Don't forget to show the...

Complete the following table. All binary numbers are 8-bit signed integers. (Don't forget to show the steps of your solution!) Decimal value Sign-magnitude representation Ones' complement representation Two's complement representation -98 10001011 01110101 10100100 Compute the results of the indicated operations in columns 2 and 3, assuming that the binary numbers represent integers in the formats given by column 1. Identify which of the operations, if any, results in an overflow. (Don't forget to show the steps of your solution!)...

Question