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	©
Schematic diagram showing the relationship between a chromosome, DNA, a gene, exons and introns.

(genetic biology)

Grammar: noun
plural: genes
Definition: a hereditary unit located on chromosomes. Genes contain the instructions for developing and operating living things, and are the DNA codes for a particular protein.
Example:
1. Complex functions like memory can be achieved by activating relatively few genes.

2. There is a large phenotypic variation in Hawaiian honeyeaters, even though they are more than 99% genetically identical.
Related Word: genetic (adjective), genetically (adverb)