Imagine in lemmings, that gray fur color (G) is dominant over white (g). There is another gene, called color, and individuals must have at least one color (C) allele for gray color to be expressed. A lemming that is heterozygous at both loci is crossed with a white lemming that is heterozygous for gray fur color. Which of the following is correct regarding their offspring?
A. 1/4 will be gray; 3/4 will be white
B. 3/8 will be gray; 5/8 will be white
C. all will be white
D. they will have a ratio of 9 gray:7 white
E. all will be gray
Answer: B
Biology & Microbiology
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