Question

please give the answer of these question

Answer 1

1) the gametes contain only half number of chromosomes as compared to the other cells of the body .

Hence ,a male gamete combines with female gamete during sexual reproduction a new zygote is formed and that contain the same amount of number as invidual parents have .

2)Clones are prepared from asexual reproduction in which only single parent involve.

3)A mutation is a change in DNA, the hereditary material of life. An organism's DNA affects how it looks, how it behaves, and its physiology. So a change in an organism's DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation.

4)Those mutations that survive and allow an organism to reproduce contribute variation to the population gene pool. The genetic makeup of a population changes ever so slightly with every generation as a result. ... As the genetic differences between sub-populations increase, so too does their genetic incompatibility

5) The Story of Dolly. Dolly is the name of a sheep that has the honor of being the first mammal to be cloned by a group of scientists in Scotland. Dolly was born July 5th, 1996 and she passed away in 2003. She lived for 6 and a half years, as a normal, active ewe.Sep 29, 2009.