In Melandrium,the sex determination type is:

$A$ fruit fly is heterozygous for a sex-linked gene. It is crossed with a normal female fruit fly. The specific chromosome for the male enters the egg in the ratio of ............. (in $: 1$)

Which of the following genotypes represents an intersex individual in Drosophila?

What is the number of chromosomes in the female gamete of a fruit fly ($Drosophila$ $melanogaster$)?

Give differences: Male heterogamety and Female heterogamety.

In our society,a woman is often blamed for not bearing a male child. Do you think it is right? Justify.