Organisms are able to produce exact copies of themselves due to -

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DNA copy

Reproduction

Sexual reproduction

Fertilization

answer is A.

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Detailed Solution

The basic event in reproduction is creation of DNA copy. With the series of chemical reactions, cells build copies of DNA. Once cell is kept in the parent cells and the copy is with the new cell which is formed. Hence, it is said that organisms create exact copies of themselves.

However, in case of sexual reproduction, some variations occur during DNA copying and hence, the copies will be similar.

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