Question

What is the percentage of homozygous offspring in the $F_2$ generation of a cross between $Tt$ and$tt$?

• A. $25$
• B. $50$
• C. $75$
• D. $80$

Answer 1

The correct option is B $50$

When a cross is made between Tt and tt, it is said to be test cross. So in the next generation 50% are hetrozygous offsprings Tt and 50% are homozygous offsprings tt are formed.

So the correct option is '50%'