Multiple choice

An organism obtained by crossing two homozygous individuals differing in two pairs of contrasting characters is called

  1. monohybrid

  2. trihybrid

  3. dihybrid

  4. polyploid
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A dihybrid cross involves two pairs of contrasting characters. When crossing homozygous parents differing in two traits (like AABB and aabb), the F1 generation is heterozygous for both traits (AaBb). Monohybrid crosses involve one trait, trihybrid involves three, and polyploid refers to having multiple chromosome sets.

Keep practicing — related questions