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DNA IL CODICE DELLA VITA

by STEFANIA COSSU

Pages 4 and 5 of 48

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DNA stands for deoxyribonucleic acid.

It is in every cell of every living thing.

DNA is found in structures of the cell called chromosomes.
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CHROMOSOMES
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Whole DNA is contained in the cell nucleus where it forms highly compressed structures called chromosomes. Human beings have 23 pairs of chromosomes for a total of 46 choromosomes.
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