Question

Test cross is the cross between the $F_1$ progeny and either of the parent types. Back cross is the cross between $F_1$ progeny and the double recessive genotype.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (D)

If both assertion and reason are false

Answer 2

A cross of $F_1$ hybrid with either of the two parents is known as back cross. Crossing of $F_1$ individual having dominant phenotype with its homozygous recessive parent is called test cross.