Barr bodies (seen in saliva test in Olympic games) are found in humans and are associated with:

The $TDF$ gene is a.....

The genic balance theory of sex determination was proposed by:

In humans,the inheritance of sex-linked traits takes place through

$A$ family has five daughters and is expecting a sixth child. What is the probability of it being a boy?

$(a)$ In humans,males are heterogametic and females are homogametic. Explain. Are there any examples where males are homogametic and females heterogametic?
$(b)$ Also describe as to who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.