Question

Monohybrid cross parents should always:

• A. be hybrid
• B. have same allelic pair
• C. be pure line and homozygous
• D. both B and C

Answer 1

The correct option is D

both B and C

Parents of monohybrid cross should always be a pure line, i.e., they should have same alleles for a particular trait. A pure line organism means homozygous. For example, TT/tt, both are pure lines, i.e., homozygous, of dominant and recessive traits respectively.