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Dihybrid test cross ratio is...

Dihybrid test cross ratio is

A

`2:1`

B

`1:2:1`

C

`3:1`

D

`1:1:1:1`

Text Solution

Verified by Experts

The correct Answer is:
D
Test cross is a cross to know the genotype of the individual . The individual is crossed with recessive parent . The dihybrid test cross ratio is 1:1:1:1 . The characters under consideration is tall white and dwarf black.
Gametes of TtWw=TW,Tw, tW,tw
Gametes of ttww=tw

Thus the ratio of TtWw : Ttww : ttWw :ttww is 1:1:1:1
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