If you cross dominant genotype PV /PV male Drosophila with double recessive female and obtain `F_(1)` hybrid. Now you cross `F_(1)` male with double recessive female.
Draw the cross with correct genotype.

The back Cross of F1 hybrid with the recessive parent is called

When red eyed female Drosophila is crossed with white eyed male, the F2 offspring would be.

A cross between F1 hybrid and recessive parent (Tt x tt) gives a ratio

The process in which the F1 hybrid is crossed with any one of the parental genotypes is

Read the cross and answer the following RrYy (F1 hybrid) xx rryy (recessive parent ) (a) Name the type of cross . (b) Mention the ratio of the cross.

Assertion : Test cross is the cross between the F_(1) progeny and either of the parenty types Reason : Back cross is rhe cross between F_(1) progeny and the double recessive genotype

Assertion : When yelow bodied, white eyed Drosophila females were hybridised with brown-bodied, red eyeed males , and F_(1) progeny was intercrossed, F_(2) ratio deviated from 9:3:3:1 Reason : When two genes in a dihybrid are on same chromosome, the proportion of parental gene combinations are much higher than the non-parental type

Assertion (A) : Test cross is done between F_2 hybrid with F_1 recessive Reason (R) : It helps to identify the homozygosity of hybrids.