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Complex Genetic Principles & Human Genetics. When Heredity Follows Different Rules. Incomplete Dominance Co-dominance Multiple Alleles Sex Linkage Polygenic Inheritance. Incomplete Dominance & Codominance. There is no dominant allele, There is no recessive allele.
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Complex Genetic Principles & Human Genetics
When Heredity Follows Different Rules Incomplete Dominance Co-dominance Multiple Alleles Sex Linkage Polygenic Inheritance
Incomplete Dominance & Codominance There is no dominant allele, There is no recessive allele. Both alleles “blend” to result in a third phenotype.
Codominance in Humans Sickle Celled Anemia
Codominance in Humans Sickle Celled Anemia
Multiple Alleles - Human Blood Type Traits that are Controlled by Three or More Alleles An Individual Has a Combination of Two of These
Multiple Alleles - Human Blood Type Allele A and Allele B are Codominant over Allele O (recessive) Blood Type Determined by the Proteins on the Surface of Red Blood Cells
Multiple Alleles - Human Blood Type What are the Genotypes of Each Individual? Key Red: Type A Blue: Type B Red/Blue: Type AB White: Type O
Sex Linked Traits Traits that are Controlled by Genes Found on the X Chromosome but not the Y Chormosome
Sex Linked Traits • Sex Linked Recessive Traits In Human Beings • Red Green Colorblindness • Hemophilia
Polygenic Inheritance Genetics of Skin Color Multiple Gene (Polygenic) Inheritance