In cattle, coat color is controlled by a sex-influenced gene that controls spot coloration. Mahogany and white spots are recessive in bulls, where as red-and-white spots is dominant in cows .A mahogany and white spotted cow is crossed with a red-and white spotted bull. The cow gives birth to a single calf with red-and-white spots. a. What are the genotypes of the cow, the bull, and the calf? Use H for dominant and h for recessive. Cow Bull Calf b. The red calf is eventually crossed with a heterozygous male. What is the probability that the first 3 calves will be mahogany with white spots? c. What is the probability that the cross in “b” will result in the first 3 calves being males with mahogany and white spots and the 4th calf a female with red and white spots?
In cattle, coat color is controlled by a sex-influenced gene that controls spot coloration. Mahogany and white spots are recessive in bulls, where as red-and-white spots is dominant in cows .A mahogany and white spotted cow is crossed with a red-and white spotted bull. The cow gives birth to a single calf with red-and-white spots.
a. What are the genotypes of the cow, the bull, and the calf? Use H for dominant and h for recessive.
Cow
Bull
Calf
b. The red calf is eventually crossed with a heterozygous male. What is the probability that the first 3 calves will be mahogany with white spots?
c. What is the probability that the cross in “b” will result in the first 3 calves being males with mahogany and white spots and the 4th calf a female with red and white spots?
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