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, Incomplete dominance , Mu lti ple Alle les

Codom inance ,. , Incomplete dominance , Mu lti ple Alle les. Codominance "co-" is "together".

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, Incomplete dominance , Mu lti ple Alle les

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  1. Codominance, , Incomplete dominance, Multiple Alleles

  2. Codominance"co-" is "together". • Refers to a relationship between two alleles of a gene. Both traits appear in an organism. They do not overpower each other. Ex: spotted dog, two different colored eyes, pink and white flower.

  3. Incomplete dominance • A cross between organisms with two different phenotypes produces offspring with a third phenotype that is a of the parent’s traits.  • Ex: RED Flower x WHITE Flower ---> PINK Flower Blending

  4. Multiple Alleles • allele = (n) a form of a gene which codes for onepossible outcome of a phenotype. • Ex. Fur color = B=black, b=white • Multiple means that one gene can have many alleles. Ex: Blood type = A, B, AB, O.

  5. Blood types:

  6. I A I B x IA i Examples: I A I B I A i Genotypes: Phenotypes: I A I A, I A i , I A I B , I B I A , AB, B 25 % 25% 25% 25% 50%, 25%, 25%

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