Which of the following symbols is used to represent the sex chromosomes in birds?

Which of the following statements are true with reference to the sex-determination in honeybees?
$A$. An offspring formed from the union of a sperm and an egg, develops as a female (queen or worker).
$B$. An unfertilized egg develops as a male by parthenogenesis.
$C$. $A$ male has half the number of chromosomes than that of a female.
$D$. Males produce sperms by meiosis.
$E$. Honeybees have a haplodiploid sex determination system.
Choose the correct answer from the options given below:

Heterosome is called

Select the correct sequence of the $F_1$ generation based on the provided cross.

$A$ gene located on the $Y$-chromosome is inherited from father to son; this is known as:

In which type of sex determination do both male and female have the same number of chromosomes?