Lab: Mouse Genetics (One Trait)

Question 1

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

Revolt · Accepted Answer

A: genotypes

Question 2

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

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A: Yes

Question 3

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

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C: 100% white

Question 4

Question 4

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D

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.

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B: The allele for black eyes is dominant.

Question 6

Your prediction is that of the offspring would have the dominant phenotype, and of the offspring would have the recessive phenotype.

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C: 75%

Question 7

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

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C: 50%

Question 8

parents and predicted the fur color, or , of the offspring.

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B: phenotypes

Question 9

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

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

Question 10

Justify your answer by filling in the blanks. Both parents have white fur. way that this can happen is if their genotypes are both . Therefore, both parents pass the allele to every offspring. When you combine two of these alleles, the resulting genotype is ; therefore, the resulting offspring have white fur.

Revolt · Accepted Answer

Selection 1: The only; Selection 2: bb; Selection 3: b; Selection 4: bb

Lab: Mouse Genetics (One Trait) Answers

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