Lab: Mouse Genetics (One Trait)

Question 1

Question 1

Revolt · Accepted Answer

Your prediction is that of the offspring would have the dominant phenotype, and of the offspring would have the recessive phenotype.: 75%; Your prediction is that of the offspring would have the dominant phenotype, and of the offspring would have the recessive phenotype.: 25%

Question 2

You confirmed the above in steps 1 through 3, in which you changed the ✔ genotypesphenotypesinheritance of the

Revolt · Accepted Answer

A: ✔ genotypes

Question 3

In general, did the simulated mice align with your predictions from the Punnett squares? ✔ YesNo

Revolt · Accepted Answer

A: ✔ Yes

Question 4

If you crossed two mice with white fur, what distribution of fur color would you expect in the offspring?

Revolt · Accepted Answer

C: 100% white

Question 5

In the cross Bb x Bb (two heterozygous mice), what percentage of the offspring would you predict to have the same phenotype as the parents?

Revolt · Accepted Answer

D: 75%

Question 6

There are genes that govern the eye color of mice, too. Suppose that a true-breeding mouse with red eyes is crossed with a true-breeding mouse with black eyes. All of the offspring mice have black eyes. What can you conclude? The allele for red eyes is dominant.✔ The allele for black eyes is dominant.Neither. You need more data.

Revolt · Accepted Answer

B: ✔ The allele for black eyes is dominant.

Question 7

25%50%✔ 75%100%

Revolt · Accepted Answer

C: ✔ 75%

Question 8

What is the probability that the couple would have a child that was also a carrier for sickle cell anemia?

Revolt · Accepted Answer

C: 50%

Question 9

parents and predicted the fur color, or genotypes✔ phenotypesinheritance, of the offspring.

Revolt · Accepted Answer

B: ✔ phenotypes

Question 10

Error Analysis: What might be the reason that some of your percentages didn’t exactly match your predicted results?

Revolt · Accepted Answer

B: Mice don’t have large litters, so the sample size was not large enough.

Lab: Mouse Genetics (One Trait) Answers

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