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What is Gene in Biology? PDF | Download eBooks

Learn Gene definition in biology with explanation to study “What is Gene”. Study gene explanation with biology terms to review biology course for online degree programs.

Gene Definition

  • Gene is a unit of inheritance.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Gene Explanation

A gene is a sequence of nucleotides in DNA or RNA that codes for a molecule that has a function. During gene expression, the DNA is first copied into RNA. The RNA can be directly functional or be the intermediate template for a protein that performs a function. Gene is a basic and functional unit of heredity. It is a segment of DNA that is responsible for the production of a specific protein or any functional RNAs. The genes can vary in size from a few hundred base pairs to thousand of base pairs.

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