Question

The cross TT $\times$ tt is a:

• A. Test cross
• B. Back cross
• C. Monohybrid cross
• D. Reciprocal cross.

Answer 1

The correct option is C Monohybrid cross

A cross made between homozygous organisms for a single trait is called a monohybrid cross. In this question, a homozygous dominant (TT) tall plant is crossed with a homozygous recessive (tt) dwarf plant. Only one trait is involved i.e. height. Therefore, it is a monohybrid cross.

So, the correct option is C.