MCQ
The study of human population statistically is known as
- AChromology
- ✓Demography
- CPopulation science
- DSinography
$(i)$ Change in population $(ii)$ Composition of population $(iii)$ Distribution of population in space.
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Reason : Sex in humans is a polygenic trait depending upon a cumulative effect of some genes on $X-$ chromosome and some on $Y-$ chromosome.
$I$. Ensuring cross-pollination
$II$. Preventing self-pollination
$III$. Ensuring self-fertilisation
$IV$. Genetic control for self-fertilisation
Choose the correct statements from those given above