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

Carbohydrates
RNA
DNA
Chromosomes

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Idiom
To take the bull by the horns

To punish a person severely for his arrogance
To bypass the legal process and take action according to one's own whims
To grapple courageously with a difficulty that lies in our way
To handle it by fierce attack

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