Category: Principles of inheritance and variation

In a peafowl, the allele for India blue (B) is dominant over the allele for white (b). The allele for long feathers (F) is dominant over the allele for short feather (f) .Pure breed India blue and long feathered peacock was crossed with pure breed white with short feathered peahen. a0 State the Phenotype and genotype of F1 progeny. b) Two offsprings of F1 were mated together. calculate expected phenotypic ratio of F2.

Dr. Karuna Sharma

b)

In cats, the allele for grey fur (G) is dominant over allele for beige fur (g). The allele for solid coat (S) is dominant over the allele for striped coat (s). A pure breeding solid, beige cat is crossed with pure breeding striped , grey cat..a) state the genotype and phenotype of the F1 individuals produced as a result of this cross, b)Calculate the phenotypes resulting from a cross between a pure breeding solid, beige cat and an F1 offspring.

Dr. Karuna Sharma

The genotype of F1 is SsGg while phenotype is Solid with Grey cat