4. (3 points). In mice, the allele C for colored fur is dominant over the allele
ID: 53884 • Letter: 4
Question
4. (3 points). In mice, the allele C for colored fur is dominant over the allele c for white fur, and the allele V for normal behavior is dominant over the allele v for waltzing behavior (a form of discordination). Give the genotypes of the parents in each of the following crosses:
3a. colored, normal mice mated with white, normal mice produced 29 colored, normal, and 10 colored, waltzing progeny;
3b. colored, normal mice mated with colored, normal miced produced 38 colored, normal, 15 colored, waltzing, 11 white, normal, and 4 white, waltzing progeny;
3c. colored, normal mice mated with white, waltzing mice produced 8 colored, normal, 7 colored, waltzing, 9 white, normal, and 6 white, waltzing.
Explanation / Answer
3a. CC Vv X Cc Vv
3b. Cc Vv X CC vv
3c. CC VV x cc vv
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