Other Patterns of Inheritance 5.5

Heredity: Other Patterns of Inheritance 5.5  There are many different __________________. 1._______________ The dominant allele completely covers the expression of the recessive allele. Ex: Guinea Pig fur color 2.________________ Neither allele is dominant; phenotype of heterozygous individual is between the two homozygous individuals. Ex: Pink snapdragon (Red-R, White-W, Pink-RW ) 3._______________ Neither 2 alleles are dominant or recessive to the other. The heterozygotes express both homozygous phenotypes. Ex: Markings on Clover leaves Patterns of Inheritance Complete Dominance Incomplete Dominance Codominance (Chevron-A, Patch-B, Mixed-AB)

Other Patterns of Inheritance 4. _______________ Type of inheritance controlled by alleles on a sex chromosome. Ex: Calico Cat Sex Linkage 1 Female Black Cat 1 Female Calico Cat 1 Male Black Cat 1 Male Orange Cat

Sex Linkage – Drosophila melanogaster (AKA common Fruit fly) Complete this Example X Y X X R R r White-eyed Male Red-eyed Female ***All offspring have red eyes!!! XRYXRY XRYXRY XRXrXRXr XRXrXRXr

Other Patterns of Inheritance 5. _______________ Type of inheritance in which there are more than 2 alleles of a gene for that trait. Ex: Human Blood Type 1.Write out the different blood types. 2.Tape foldable at the bottom of the page. 3.Copy information under the flap ( pic on the right ). Multiple Alleles A B AB O