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What is the functional unit of a gene?

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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. read more

Basically Gene is the functional unit of Heredity. Here for this question, functional unit of Gene is DNA because genes are made up of DNA. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. read more

14-1 The Function of Genes ****Genes specify a proteins**** George Beadle’s Experiment showed that mutated bread mold will fail to make a particular enzyme and will not grow on minimal medium (“One Gene, One Enzyme Hypothesis”) Conclusions: A gene is a segment of DNA that specifies the sequence of amino acids in a polypeptide of a protein. read more

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