Q24 of 47 Page 73

The theory of evolution of species by natural selection was given by

Charles Darwin put forth the theory of natural selection. Natural selection is the process by which nature selects the individual which can survive in a particular environment with desirable trait.


Natural selection gives a survival advantage and thus alters frequency of inherited trait.

More from this chapter

All 47 →
22

In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2 is

 23

The number of pair (s) of sex chromosomes in the zygote of humans is

 25

Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution this means that

 1

How is the sex of a newborn determined in humans?