What is a chromosome?

4 years ago

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Jagjot Gill

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Tara S Verified Sherpa Tutor ✓

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Structures of DNA that code for the characteristics of an organism. Humans have 23 pairs of chromosomes, each of which contains many genes.

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Celine W Verified Sherpa Tutor ✓

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A chromosome is a long piece of DNA that is found in the nucleus of a cell.

Each chromosome is made of several genes and each gene is made up of DNA.

Think of DNA as a small building block, like a brick.

Then multiple bricks come together to build a wall (gene).

Then multiple walls built on top of each other form a whole skyscraper (chromosome).

(Finally, many skyscrapers side by side form a whole city (all chromosomes in the nucleus)).

Hope this helps :)

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