Question

A homozygous tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous Dwarf plant (t) bearing white flowers (r) :-

1. Give the genotype and phenotype of F1 generation

2. give the possible combinations of the gamets that can be obtained from the F1 hybrid

Answer 1

1. TTRR × ttrr

(Tall red) (Dwarf white)

↓

F1 → TtRr

(Tall red)

Genotype is TtRr and phenotype is tall and red flower.

2. Four gametes are possible from F1 generation:

TR, Tr, tR and tr.