Sex Determination

Which of the following organisms show heterogametic nature in one of their sex?

A man can inherit his X chromosome from :

The AA+ XO type of chromosome constitution is seen in :

Males of silkworm Bombyx mori are known to produce more silk per unit quantity of leaf consumed. Hence, they are preferably bred in sericulture industry. Which of the following genotypes should be crossed in order to get maximum fraction of male insects?

Note: ${\mathrm{SL}}_1$ and ${\mathrm{SL}}_2$ are sex-linked recessive lethal mutations.

Female heterogamety is found in

Which of the following is responsible for sex of the chicks?

Male is homogametic in

In the number of insects and mammals the type of sex determination is

X-chromosome is used in the determination of sex; therefore, it is known as

X-body of Henking was

X-body was first reported by:

Which type of sex-determination is found in most insects?

Identify the incorrect match:

Males are heteromorphic and heterogametic in the case of

Haplo-diploid insects have diploid females from fertilized eggs but haploid males from unfertilized ones. Such a haploid male with red eyes is crossed with a white-eyed female. Assuming that the red-eye colour mutation is dominant over the white-eye colour, which one of the following statements is true?

Identify gametes $(\mathrm{A}, \mathrm{B}$ and $\mathrm{C})$ respectively in given diagram

Which of the following is an example of ZW-ZZ type of mechanism of sex determination?

The chromosomes responsible for the determination of sex in humans are ______.