Question
Briefly mention the contribution of T.H. Morgan in genetics.
✓
Answer
TH Morgan's contribution in genetics are:
- Morgan contributed to the understanding of sex-linked traits.
- He carried out several experiments on fruit flies and his dihybrid crosses revealed that genes for some traits did not segregate independently and the F2 ratio was a lot different from 9 : 3 : 3 : 1.
- He inferred that when two genes were situated on the same chromosome, the proportions of parental gene combinations were significantly higher than the non-parental type.
- He established the principle of linkage crossing over, sex-linked inheritance and discovered the relation.
- He established the technique of chromosome mapping.
- He observed and worked on mutation.
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