5. In cattle, polled (absence of horns) expresses complete dominance over horned and roan is the...

5. In cattle, polled (absence of horns) expresses complete dominance over horned and roan is the result of the heterozygous condition of the genes for red and white coat color. (Red and white alleles express co-dominance) Assume both traits are on separate pairs of autosomes.

a) What proportion of the offspring of a roan heterozygous polled bull and a roan horned cow would be predicted to be roan and horned?

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gladiator answered 2 years ago

In shorthorn cattle, the polled (hornless) condition is dominant over the horned condition. Heterozygotes produced by...

In shorthorn cattle, the polled (hornless) condition is dominant over the horned condition. Heterozygotes produced by mating red and white cattle are roan-colored; and long legs are dominant over short. A homozygous red, polled, long-legged bull is mated to a herd of cows that are all homozygous for the alternative alleles at all three loci. a) What will the progeny look like? (1) b) When the F1 progeny are mated, what phenotypic combinations, and in what ratio, should be expected...

Flower color in pea plants exhibits complete dominance as the purple allele is completely dominant over...

Flower color in pea plants exhibits complete dominance as the purple allele is completely dominant over the white alleles. A) Out of 276 pea plants, 273 have purple flowers. Assuming the population is in Hardy-Weinberg Equilibrium, calculate the Expected allele frequencies. B) A group of students counts 552 pea plants. Based on the expected allele frequencies, how many should have purple flowers and how many should have white flowers?

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5. In cattle, polled (absence of horns) expresses complete dominance over horned and roan is the...

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In shorthorn cattle, the polled (hornless) condition is dominant over the horned condition. Heterozygotes produced by...

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