$A$ : $XO$ type sex determination is found in large number of insects.
$R$ : Some of the sperms bear the $X-$chromosome whereas some do not
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
A family has five girls and no son. Probability of son as the $6^{th}$ child will be
The sex determination pattern in honeybee is called
What is heterogametic ? Explain by giving proper examples ?
Describe the process of sex determination in humans.
Which one of the following conditions correctly describes the manner of determining the sex?