Question

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Why DNA copying is essential ? Mention any 3 reasons .

Class - 10th
Chapter - Reproduction.

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Answer 1

Answer:

dna contains all the information for constructing a body

it contains traits to be passed down from parents

a fault in dna copying can cause deformity in body at birth

Answer 2

"DNA means one or more pair of molecules which carries and transmits the genetic materials of parents to the next generation."

It is of three types :-

• A DNA

• B DNA

• Z DNA

It is found in nucleus of the cell .

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DNA copying is essential for :-

• It plays a major role in reproduction of organism.

• It carries the cell for one organism to another ie ; genes of parents.

• It passes the heath , mental & physical trait from one generation to another.

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