Question

Write a note on Darwinism. How artificial selection is used to produce new varieties of crops?

Answer 1

Some consider domesticated animals to be the ultimate products of artificial selection. Thoroughbred racehorses are one example of artificial selection of animals. The meats we eat are the result of the careful selective breeding of cows, pigs, sheep, and chickens.


He was also aware that humans could breed plants and animals to have useful traits. By selecting which animals were allowed to reproduce, they could change an organism's traits. ... Darwin called this type of change in organisms artificial selection. He used the word artificial to distinguish it from natural selection.


Farmers and breeders allowed only the plants and animals with desirable characteristics to reproduce, causing the evolution of farm stock. This process is called artificial selection because people (instead of nature) select which organisms get to reproduce. ... This is evolution through artificial selection.

Answer 2

Darwinism is also known as Theory of Natural Selection. According to the Darwin, out of the vast number of individuals which compete for a place in the world, only those having advantageous variations survive and reproduce. Mutation is defined as a sudden chromosomal change by which variation occurs in organism.