1
Stage 1 of 3
genos
Greek · ancient
"birth, race, kind"
birth, race, or kind, the root of anything inherited
2
Stage 2 of 3
Gen
German · 1900s
"a unit of heredity"
coined by biologist Wilhelm Johannsen for the unit of heredity
3
Stage 3 of 3
gene
English · 1900s
"a unit of heredity in a living organism"
settled as the English word for the basic unit of heredity
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