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balandron [24]
3 years ago
11

Which best defines genes?

Biology
1 answer:
Y_Kistochka [10]3 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. ... Alleles are forms of the same gene with small differences in their sequence of DNA bases
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