the heridatery units of chromosomes ___________????
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"A gene is the basic physical and functional unit of heredity. Genes, which are made up of DNA, act as instructions to make molecules called proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases."
chinmay1312:
what?
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Genes are the hereditary units. Males are formed of 2 genes, XY. And similarly females have same genes, XX.
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