<P> In humans , half of spermatozoons carry X chromosome and the other half Y chromosome . A single gene ( SRY ) present on the Y chromosome acts as a signal to set the developmental pathway towards maleness . Presence of this gene starts off the process of virilization . This and other factors result in the sex differences in humans . The cells in females , with two X chromosomes , undergo X-inactivation , in which one of the two X chromosomes is inactivated . The inactivated X chromosome remains within a cell as a Barr body . </P>
<P> In humans , half of spermatozoons carry X chromosome and the other half Y chromosome . A single gene ( SRY ) present on the Y chromosome acts as a signal to set the developmental pathway towards maleness . Presence of this gene starts off the process of virilization . This and other factors result in the sex differences in humans . The cells in females , with two X chromosomes , undergo X-inactivation , in which one of the two X chromosomes is inactivated . The inactivated X chromosome remains within a cell as a Barr body . </P>
which type of chromosome does the female parent give to its offspring
which type of chromosome does the female parent give to its offspring
X chromosomes
X chromosomes