Question 3
Chromosomes are made up of

(a) DNA
(b) Protein
(c) DNA and proteins
(d) RNA

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Solution

(c) DNA and proteins

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

DNA and histone proteins are packaged into structures called chromosomes

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Question 3
Chromosomes are made up of

(a) DNA
(b) Protein
(c) DNA and proteins
(d) RNA

Synthesis phase in the cell cycle is called so for the synthesis of more of:
(a) RNA

(b) RNA and proteins

(d) Glucose

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