Non Mendelian Genetics: Multiple Alleles Lecture Notes

Multiple Alleles

There are more than _______________________ for a gene.

Ex – blood type consists of two ___________________ and one _________________ allele

options. Allele A and B are dominant over Allele O (i)

Multiple Alleles:Lab Mouse Fur Colors

Fur colors (determined by 4 alleles): black agouti yellow

Multiple Alleles:

Rabbit Fur Colors

Fur colors (determined by _________________): full, chinchilla, himalayan, albino

Multiple Alleles:Blood Types (_______, _________, ____________, ____________)

Rules for Blood Types:

A and B are ______________________________ (Both show)

AA or IA

IA

= type A

BB or IB

IB

= type B

AB or IA

IB

= type AB

A and B are __________________________ over O (Regular dom/rec)

AO or IA

i = type A

BO or IB

i = type B

OO or ii = type O

Multiple Alleles:Blood Types (A, B, AB, O)

Problem: Multiple Alleles

Show the cross between a mother who has type O blood and a father who has type AB blood.

Problem: Multiple Alleles

Show the cross between a mother who is heterozygous for type B blood and a father who is heterozygous for type A blood.