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Download Epistasis Many different types of Epistasis that lead to some variation... I.
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Transcript
Epistasis I. Many different types of Epistasis that lead to some variation of the Mendel’s 9:3:3:1 ratio a. Duplicate Recessive Epistasisi. must have the presence of 2 genes to express another ii. EX: must have B and C to express E or e iii. ratio is 9:7 b. Dominant Epistasisi. presence of one gene masks the expression of the dominant and recessive forms of another ii. EX: B masks the expression of E and e (an entire trait) iii. ratio is 12:3:1 c. Recessive Epistasisi. presence of one gene masks the expression of only the dominant form of another ii. EX: B masks the expression of E only (only dominant form of trait) iii. ratio is 9:4:3
