Question

A student was asked to do a cross between dominant red flower and recessive white flower. 1. Show the cross of f1 and f2 generation. 2. Write the genotypic and phenotypic ratio of f2 generation.

Answer 1

RR. +. rr

R. +. r

F1 generation ~ Rr

so as Red is dominant trait the progeny would be red.......

Rr. +. Rr

RR. Rr. rR. rr.

1. : 2. : 1