Question

In XO type of sex determination

• A. Females produce two types of gametes
• B. Males produce two types of gametes
• C. Females produce gametes with Y-chromosome
• D. Males produce gametes with Y-chromosome

Answer 1

Answer: (B)

Males produce two types of gametes

The X0 sex-determination system is a system that determines the sex of offspring among grasshoppers, crickets, cockroaches, and some other insects. In this system, there is only one sex chromosome, referred to as X. Males only have one X chromosome (X0), while females have two (XX).

The male in XX-XO systems produces gametes with (X) or without (O) a sex chromosome.

So, the correct answer is 'Males produce two types of gametes'.