Define and design a test cross.

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(N/A) test cross is a genetic cross between an individual with an unknown genotype (showing a dominant phenotype) and a homozygous recessive parent. I

Vedclass · Accepted Answer

Vedclass · Answer

(N/A) test cross is a genetic cross between an individual with an unknown genotype (showing a dominant phenotype) and a homozygous recessive parent. It is used to determine whether the individual is homozygous or heterozygous for a specific trait.
If the progeny produced by a test cross shows $50 \%$ dominant trait and $50 \%$ recessive trait (a $1:1$ ratio),then the unknown individual is heterozygous $(Rr)$.
On the other hand,if all the progeny produced show the dominant trait,then the unknown individual is homozygous dominant $(RR)$.

Similar Questions

The genotype of a plant showing the dominant phenotype can be determined by

$A$ test cross cannot be performed in which of the following?

How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?

Mendel performed a test cross to determine the:

The cross used to determine whether a dominant phenotype is homozygous or heterozygous is called ......

Vedclass Test Series

Exam Paper Generator

Online Exam Module