Give differences : Male heterogamety and Female heterogamety
Male heterogamety | Female heterogamety |
$(1)$ Male produces two types of gametes. | $(1)$ Female produces two types of gametes |
$(2)$ e.g. Human male produces gametes of $\mathrm{X}$ and $Y$-types. | $(2)$ e.g. Female birds produces gametes of $Z$ and $\mathrm{W}$ types. |
The male human is represented by sex chromo-somes
Select the incorrect statement
In melandrium the sex determination type is
Describe the process of sex determination in humans.
$(a)$ 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.