In mice, Y is the dominant allele for yellow fur and y is the recessive allele for grey fur. If Y is lethal when homozygous, then the result of cross Yy × Yy will be

Q. In mice, Y is the dominant allele for yellow fur and y is the recessive allele for grey fur. If Y is lethal when homozygous, then the result of cross Yy × Yy will be

Q. Choose the correct answer from the alternatives given.

Q.

The elements of sets A , B and C are all colours as follows:

A = { Red , Orange , Yellow , Brown } ,

B = { Blue , Yellow , Green , Brown } ,

C = { Black , Brown , White , Grey }

Then, A U B U C is

Q. (1) Green
(2) Yellow
(3) Grey
(4) Red

Q. A cross was done between dominant wild type grey bodied male drosophila melanogaster having developed wing, with recessive mutant yellow bodied female fly having vestigial wing. $F_1$ offsprings of the above cross were as follows-

(a) All females were of wild type variety with grey body and developed wing

(b) All males were of mutant type with yellow body and vestigial wing

Based on information given above, identify the genotype of parental generation form options given below-