Sex-linked traits are the traits determined by

If a character is always transmitted directly from a father to all his sons and from their sons to all their sons,then which chromosome carries the gene for the character?

$X$-linked recessive gene is ...... .

In chickens,which of the following is responsible for sex determination?

Honeybees produce their young ones only by sexual reproduction. Inspite of this,in a colony of bees we find both haploid and diploid individuals. Name the haploid and diploid individuals in the colony and analyse the reasons behind their formation.

$A$ man can inherit his $X$-chromosome from his