1. Types of Inheritances II
Pp 237,

2. Sex linked traits
Recessive disorder/trait found on the “X” chromosome

5. Males are more likely to have an x- linked disorder
Possible genotypes for males:
XRy, Xry
Possible genotypes for females:
XRXR, XRXr, XrXr
50% chance for males, 33% chance for females

7. Possible genotypes and phenotypes: XR XR = normal vision XR Xr = normal vision Xr Xr = color blind XR Y = normal vision Xr Y = color blind

11. Multiple allele trait Controlled by more than two alleles in one gene
EX. Bloodtype

12. Blood Types
IA : produces A proteins on surface of cell
IB : produces B proteins
i : does not produce proteins

13. Still only inherit one copy from each parent for a total of two alleles but have a few to combine

14. Practice Problem
What possible blood types could the children of a homozygous A female and a male with AB blood have?
Parents genotype:
_____ x ______