Multiple choice

When a heterozygous offspring is crossed with a homozygous recessive parent, the cross is called a:

  1. back cross

  2. test cross

  3. out cross

  4. none of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A test cross involves crossing an individual with unknown genotype (usually heterozygous) with a homozygous recessive individual to determine the unknown genotype. Back cross is crossing with a parent, out cross is with unrelated individual, making test cross the correct answer.