Question

Which one of the following represents a test
cross ?
(a) Ww × WW (b) Ww × Ww
(c) Ww × ww (d) WW × WW

Answer 1

Option (c) Ww x ww represents a test cross.

Explanation:

• When a cross is made between unknown heterozygous dominant genotypes and homozygous recessive genotypes, it is called a test cross.
• With the help of this phenomenon when the given options are examined it gives the following result:

(a) Ww x WW - This is cross between heterozygous dominant genotype and homozygous dominant genotype.

(b) Ww x Ww - This is a cross between two parents with heterozygous dominant genotype.

(c) Ww x ww - This represents a cross between heterozygous dominant genotype and homozygous recessive genotype.

(d) WW x WW - This represents a cross between two parents with homogeneous dominant genotypes.

• As per the above information, it is clear that option (c) Ww × ww, represents the test cross.

Learn more about such concept

Explain the given statements.

Test cross is a back cross but back cross is not necessarily a test cross.

https://brainly.in/question/6128641

What are the benefits of back cross and test cross??

https://brainly.in/question/888452