roam ( mixture of red and white,heterozygous)
a) when red bull is mated to a white cow, what genotypes and phenotypes of offspring could be obtained?
b) If one of the offspring in (a) were mated to a white cow, what genotypes and phenotypes of offspring could be produced? In what proprtion?
In a certain cattle,hair color can be red (homozygous dominant), white (homozygous recessive) or ..?
A) Both the genotype and phenotype would be roan
B) 1/2 you would get roan(Rw)and 1/2 white(ww)
In a certain cattle,hair color can be red (homozygous dominant), white (homozygous recessive) or ..?
When a homozygous bull (RR) is mated with a white cow (rr) you would get 100% ROAN (notice spelling). Your genotype would be Rr for all of the calves produced. If you took one of your calves (Rr) and bred it to a white cow (rr) you would have a 50% chance of a roan (Rr) and a 50% chance for a white calf (rr).
In a certain cattle,hair color can be red (homozygous dominant), white (homozygous recessive) or ..?
A) all would be roam(Rr)
B) 1/2 roam(Rr) 1/2 white (rr)
No comments:
Post a Comment