Select the incorrect statement
Male fruit fly is heterogametic.
In male grasshoppers, $50 \%$ of sperms have no sex-chromosome.
In domesticated fowls sex of progeny depends on the type of sperm rather than egg.
Human males have one of their sex-chromosome much shorter than the other.
Male child will be born if
Which one of the following conditions correctly describes the manner of determining the sex?
While solving the problem of sex determination in large number of insects, it was observed that
Sex determination in Drosophila melanogaster is based on
Delete the odd one: