Question

explain the female heterogamety of grasshopper with an example

Answer 1

In grasshopper, females are homogametic XX and males are having only one sex chromosome, i.e, X chromosome and no Y chromosome. Males and females are having different number of chromosomes. Females will produces only one type of gamete, while males will produce gametes having X chromosome and a gamete without X chromosome. So, the sex of the offspring will depend on the sperm that will fertilise the egg. Hence, the male is heterogametic and will decide the sex of the progeny.