Respuesta :

The correct answer is DNA. 

Each chromosome is made up of DNA tightly coiled many times around proteins that support its structure :)

ANSWER:

         A chromosome is composed  of DNA

EXPLANATION:


In the nucleus of every cell, the DNA molecule is packaged within thread-like formations known as chromosomes. Each chromosome is composed up of DNA tightly looped many times around proteins termed histones that maintain its structure

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