A homozygous tall plant (T) bearing red flowers (R) is crossed with a homozygous dwarf plant (t) bearing white flowers (r)
Give the dihybrid ratio and the phenotype of the offsprings of the F-₂ generation, when two plants of the F-₁generation are crossed.

Open in App

Solution

The genotype of the homozygous tall plant bearing red flowers is TTRR and the genotype of the homozygous dwarf plant bearing white flowers is ttrr, when they have crossed then the genotype of the F₁ generation will be TtRr.
When the F-₁generation offsprings are self-crossed then the dihybrid ratio of the F₂ generation can be obtained by Punnett square.
♂
♀
TR Tr tR tr
TR TTRR TTRr TtRR TtRr
Tr TTRr TTrr TtRr Ttrr
tR TtRR TtRr ttRR ttRr
tr TtRr Ttrr ttRr ttrr
Thus, the dihybrid ratio of the F-₂ generation is 9:3:3:1 and the phenotype is tall red: tall white: dwarf red: dwarf white respectively.

Suggest Corrections

Similar questions

A homozygous tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous dwarf plant (t) bearing white flowers (r).

Give the genotype and phenotype of the F₁ Generation.

A homozygous tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous dwarf (t) plant bearing white (r) flowers.

What is the phenotypic ratio obtained in

F_{2}

generation?

Q. A dihybrid tall plant bearing yellow flowers was crossed with a dwarf plant bearing white flowers. What is the percentage of progeny expected to be homozygous tall bearing yellow flowers?

a homozygous tall plant(T) bearing red colour(R) is crossed with homozygous dwarf plant(t) bearing white colour(r).fing the genotypic and phenotypic ratio of the first generation.

A homozygous tall plant (T) bearing red-colored (R) flowers is crossed with the homozygous dwarf plant (t) bearing white flowers (r).

Give the possible combination of gametes that can be obtained from F₁-hybrid.

Join BYJU'S Learning Program

♂ ♀	TR	Tr	tR	tr
TR	TTRR	TTRr	TtRR	TtRr
Tr	TTRr	TTrr	TtRr	Ttrr
tR	TtRR	TtRr	ttRR	ttRr
tr	TtRr	Ttrr	ttRr	ttrr

A homozygous tall plant (T) bearing red flowers (R) is crossed with a homozygous dwarf plant (t) bearing white flowers (r) Give the dihybrid ratio and the phenotype of the offsprings of the F-2 generation, when two plants of the F-1 generation are crossed.

A homozygous tall plant (T) bearing red flowers (R) is crossed with a homozygous dwarf plant (t) bearing white flowers (r)
Give the dihybrid ratio and the phenotype of the offsprings of the F-₂ generation, when two plants of the F-₁generation are crossed.