A family has five girls and no son. Probability of son as the $6^{th}$ child will be
$50\%$
$75\%$
Full
No chance
It's Obvious
Assertion : In humans, the gamete contributed by the male determines whether the child produced will be male or female.
Reason : Sex in humans is a polygenic trait depending upon a cumulative effect of some genes on $X-$ chromosome and some on $Y-$ chromosome.
A male child would be born to parents if
Match following pair.
What is heterogametic ? Explain by giving proper examples ?
In man, the composition of female destined zygote is
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