Cattle

Q4: In cattle, there is an allele called "dwarf" which, in the heterozygote, produces calves with legs that are shorter than normal. This allele is homozygous lethal, meaning that homozygous dwarf calves either spontaneously abort early or are stillborn. If a dwarf bull is mated to a dwarf cow, what phenotypic ratio do you expect among the living offspring? Show all work, including identification of alleles and the cross.

SOLVED: In cattle, there is an allele called dwarf which, in the heterozygote, produces calves with legs that are shorter than normal. This allele is again homozygous lethal, meaning that the homozygous dwarf calves spontaneously abort early or are stillborn. If a dwarf bull is mated to 400 dwarf cows, what phenotypic ratio do you expect among the living offspring?Problems Involving Two GenesA man with dark (dominant), curly (see problem 1.5) hair marries a woman with light, straight hair. Their

Miniature Cows Are Pint-Size Companions for Any Small Homestead