Idiom
It is a heredity material and contains the genetic information which is passed on from one generation to another.

Chromosomes
RNA
Carbohydrates
DNA

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Idiom
For each of the following sentences four alternatives are given. You are required to choose the correct meaning of the idiom or phrase given or underlined in the sentence. He always cuts both ends.

inflicts injuries on others
behaves dishonestly
works for both sides
argues in support of both sides of the issue
creates discord among friends

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