The offsprings of hybrids are inviable or infertile in

Who obsererved that offspring of hybrid resemble their grand parents more than their parents

Who obsererved that offspring of hybrid resemble their grand parents more than their parents

When a hybrid produces sterlie or infertile offspring , it is known as

When a hybrid produces sterlie or infertile offspring , it is known as

Define primary infertility.

Define infertility.

Hybrid breakdown refers to the condition when offspring are physiological inferior to the following generation

Which one is used for infertility?