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What is polygenic Inheritance?
When multiple genes affect 1 trait.
Continous variation is a characteristic of polygenic inheritance. (e.g. height of humans)
- When a single gene affects multiple different traits.
- Exam a defect in gene which codes for a protein for oxygen transport leads to disfunctions throughout the body (kidney, heart, etc)
Gene-> protein -> trait 1, 2, 3
One gene affects the action of another gene (e.g. pigmentation)
When multiple alleles produce more than two distinct phenotypes (e.g. blood group in humans)
How many Hydrogen bonds do A-T have?
How many Hydrogenbonds between C and G?