Genes:
Gene (Or.genos = Birth,race) are the basic units of inheritance consisting of a sequence of DNA that occupies a specific position called locus on a chromosomes and is capable of a biological expression. It is the means by which one or more specific characteristics are passed on from parents to offspring.
Alieles:
Gr. allelon = of one anothe): Any pf the possible alternative forms of the same gene, of which every individual inherits two (one from each parent), different combinations of which produce different characteristics.
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