Multiple choice

A ______ cross is named so because it helps to determine whether an individual showing a dominant character is homozygous or heterozygous.

  1. back

  2. test

  3. filial

  4. reciprocal

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

A test cross is specifically designed to determine the genotype of an individual showing a dominant phenotype. By crossing it with a homozygous recessive individual, the appearance of recessive offspring reveals whether the dominant individual was heterozygous. This is a fundamental genetic diagnostic tool.