L9: If genes N and Q are fully linked and no crossing over o…

L9: If genes N and Q are fully linked and no crossing over occurs between them, what do you expect to see from a dihybrid cross? 1.All of the offspring will resemble the parental phenotypes 2.All of the offspring will be nonrecombinant offspring 3.Half of the offspring will be nonrecombinant offspring 4.A traditional 9:3:3:1 phenotypic ratio

L9: An individual is heterozygous for genes A and B and has…

L9: An individual is heterozygous for genes A and B and has the following genotype: Which gametes are expected to be produced from that individual (assume genes A and B are unlinked)? A, a, B and b AA, AB, BB and bb AA, Aa, aa, BB, Bb and bb AB, Ab, ab and aB

L6: Labradors can be black, brown or yellow, and their coat…

L6: Labradors can be black, brown or yellow, and their coat color depends on two loci.  One determines coat color, with black (B) dominant over brown (b). Another locus determines deposition of color in the fur, with color deposition (E) is dominant over no color deposition (e).  You cross a black Labrador homozygous for both traits with a yellow Labrador.  What are the genotypes and phenotypes of the expected progeny?

L5: Fast-feathering is a Z-linked, recessive trait. The domi…

L5: Fast-feathering is a Z-linked, recessive trait. The dominant trait is slow-feathering. A fast-feathering male is crossed to a slow-feathering female. What percentage of female chicks will be fast-feathering? Note: in birds, the females are the heterogametic sex.