Question

In Mirabils , when a pure tall and red flowered plant was crossed to pure dwarf and white flowered plant, F1 was tall with pink flowers determine the phenotypic and genotypic ratio of F2 progeny.

Answer 1

Parents TTRR (Tall Red) X ttrr ( Dwarf White)

Gametes TR tr

F1 TtRr ( Tall Purple)

On selfing

TtRr x TtRr

Gametes: TR tr TR tr

F2 Generation:

Gametes	TR	Tr	tR	tr
TR	TTRR Tall Red	TTRr Tall Pink	TtRR Tall Red	TtRr Tall Pink
Tr	TTRr Tall Pink	TTrr Tall white	TtRr Tall Pink	Ttrr Tall white
tR	TtRR Tall Red	TtRr Tall Pink	ttRR Dwarf Red	ttRr Dwarf Pink
tr	TtRr Tall Pink	Ttrr Tall White	ttRr Dwarf Pink	ttrr Dwarf white

Phenotype: Tall Red: Tall white: Tall Pink: Dwarf Pink: Dwarf Red: Dwarf White

Genotype: 3 : 3:6:2:1:1