$A$ man who carries a sex-linked gene on his $Y$ chromosome will transmit this gene to:

In $Bonellia$,all larvae are genetically and cellularly identical. The male individual lives in the uterus of the female. If a larva settles near the proboscis of an adult female,it develops into a male. If the larva develops freely in the water,it develops into a.....

Individuals having homomorphic sex chromosomes produce:

$A$ gene located on the $Y$ chromosome is called:

The average ratio of male to female individuals based on $XX$ and $XY$ type of sex determination in the total human population is:

Which of the following correctly describes the mechanism of sex determination in the given example?