Lecture 30 Incomplete dominance and codominance

Lecture 30 Incomplete dominance and codominance - Biol141...

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Biol141 Foundations in Modern Biology Cellular Biology and Genetics Lecture 30 – Wednesday, November 9 th , 2011 Genetics V – Incomplete dominance and co- dominance. Reading: Klug. Chapter 4 pages 62-67.
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Learning objectives At the end of this lecture, you will be able to: 1) Discriminate between the number of alleles that can be possessed by an individual organism compared to the number of alleles that can be found in a population. 2) Explain the effect of partial or incomplete dominance of alleles on Medelian ratios. 3) Describe the effect of the co-dominance of alleles on Medelian ratios using human ABO blood types as an example.
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Alleles and their interactions ! Differences in alleles of genes consist of slight differences in the DNA sequence at the same locus, resulting in slightly different protein products. ! Different alleles exist because any gene is subject to mutation into a stable, heritable new form. Alleles can mutate randomly. !
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Lecture 30 Incomplete dominance and codominance - Biol141...

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