Why is it possible for you to study the eye colour gene by extracting cheek cells?

Question

Answer

Because the nucleus of every cell in the human body contains the same genetic information.

Answer

Because all genes in the human body are expressed at all times so it is easy to study them.

Answer

Because the cheek cells are located near the cells of the eye and so they are able to exchange DNA.

Answer

All of the above are possible explanations.

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