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11Alexandr11 [23.1K]
2 years ago
12

5 sentences that you know about genetics

Biology
1 answer:
klio [65]2 years ago
5 0
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. The Human Genome Project estimated that humans have between 20,000 and 25,000 genes.
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