Chromosomal Theory of Inheritance Video Lessons

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Problem: You do a cross between a white curly haired mouse and a black straight-haired mouse. You do not know if these animals come from true breeding populations. The 16 F1 progeny are 8 white curly mice and 8 black straight-haired mice. The following are consistent with this data.A. Black is dominant.B. One of the mice was heterozygous for both curly/straight and white/black hair.C. Both curly/straight and white/black are present together on the same chromosome.D. All of the answers listed above are correct.E. None of the answers listed above are correct.

FREE Expert Solution

The F1 progeny showed a 1 : 1 phenotypic ratio for both the hair color and hair type traits. The supplied information is still insufficient to conclude which trait is dominant over the other. Thus, A cannot be correct at this point.

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Problem Details

You do a cross between a white curly haired mouse and a black straight-haired mouse. You do not know if these animals come from true breeding populations. The 16 F1 progeny are 8 white curly mice and 8 black straight-haired mice. The following are consistent with this data.

A. Black is dominant.

B. One of the mice was heterozygous for both curly/straight and white/black hair.

C. Both curly/straight and white/black are present together on the same chromosome.

D. All of the answers listed above are correct.

E. None of the answers listed above are correct.

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