Lect3-ModMendelian

Lect3-ModMendelian - MendelianGenetics DivisionsofGenetics

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Mendelian Genetics 
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Divisions of Genetics Transmission – how traits are  passed on Molecular – chemical nature of  gene Population – groups of individuals
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How to Read Pedigrees…
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Autosomal recessive pedigree Remember Mendel’s F1 generations
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Tips on this type of pedigree Hidden trait  - one has to be  heterozygous Tend to skip a generation Affect both sexes equally
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Autosomal Dominant Pedigree
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Tips to recognize this pedigree Appear in almost all generations Affected individuals have an  affected parent Appear equally in both sexes
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Modifications of Mendelian  Genetics
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Modification of Mendelian  Ratios Alleles Traits controlled by single gene  pair Traits controlled by multiple gene  pairs
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Alleles Wild-type: occurs most frequently in  population Loss of function or null Gain of function Notation of wt, dominant, recessive,  incomplete or codominance
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Incomplete dominance Also called partial dominance
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Lect3-ModMendelian - MendelianGenetics DivisionsofGenetics

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