Question

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Why DNA copying is essential ? Mention any 4 reasons .
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Answer 1

1. The passing on of the traits from the parents to the offspring is called heredity.

2.DNA replication is a process by which the cells of an organism make additional copies of DNA.

3. Thes additional copies of DNA can be transferred to the offspring which carries the genes of characters of both the parents (father and mother).

4. Thus, DNA copying is an essential part of reproduction.

Answer 2

• DNA copying (replication) mechanism is necessary for reproduction as copying of DNA helps in transfer of information or characters from parents to offspring.
• It also helps to generates variations during sexual reproduction. This variation leads to evolution.
• DNA copying is also necessary because DNA (Deoxyribonucleic acid) is the genetic material found in the chromosomes, which are present in the nucleus of a cell.
• The DNA is the information site for making proteins and each specific type of protein leads to a specific type of body design and if DNA is not copied properly then offspring might face some serious abnormalities or might not even develop.