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Chromosomes are made up of
(a) DNA
(b) protein
(c) DNA and protein
(d) RNA.
Correct Answer: (c) DNA and protein
Explanation:
Chromosomes are thread-like structures made up of protein and a single molecule of deoxyribonucleic acid (DNA). These are located inside the nucleus of animal and plant cells.
The structure of chromosomes keeps DNA tightly wrapped around spool-like proteins called histones. Humans have 23 pairs of chromosomes, for a total of 46 chromosomes.
Chromosomes are composed of DNA, histones, and RNA. Genes are not visible and chromosomes are visible under the microscope. A single chromosome comprises many genes. It contains and preserves information in the form of a sequence of DNA for producing proteins.
Updated on: 05-Jan-2023
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