Lab: Mouse Genetics (One Trait)

Question 1

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

Revolt · Accepted Answer

✔ Yes

Question 2

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

Revolt · Accepted Answer

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

Question 3

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

Revolt · Accepted Answer

100% white

Question 4

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

75%

Question 5

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

The allele for black eyes is dominant.

Question 6

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

Revolt · Accepted Answer

50%

Lab: Mouse Genetics (One Trait) Answers

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