Chapter 19 Heredity Lesson 3 - Complete and Incomplete Dominance_Multiple alleles_Sex determination

Complete vs Incomplete dominance (Codominance)

Is it possible? X White snapdragon Red snapdragon Pink snapdragon

,[object Object],[object Object],[object Object],[object Object],[object Object],Incomplete dominance/Codominance

Phenotypic ratio for Codominance

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Red flower x white flower RR x rr All Rr All pink R r R r Let R represent the alleles of the snapdragon with red flower. Let r represent the alleles of the snapdragon with white flower. R R r r Rr Rr Rr Rr

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],pink x pink Rr x Rr RR, Rr, Rr, rr red, pink, pink, white 1:2:1 (red:pink:white) r r R r R r Rr R R Rr rr RR

Another example roan White cow Red cow X

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Multiple alleles

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Blood group A x Blood group B I A I A x I B I o I A I B , I A I B , I A I O , I A I O Blood groups AB, AB, A and A I O I B I O I A I A I B I B I A I A I A I A I B I A I O I A I O

Am I legitimate? ,[object Object],[object Object]

Sex determination ,[object Object],[object Object],[object Object],[object Object],[object Object]

Chapter 19 Heredity Lesson 3 - Complete and Incomplete Dominance_Multiple alleles_Sex determination

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Chapter 19 Heredity Lesson 3 - Complete and Incomplete Dominance_Multiple alleles_Sex determination