Chapter 11.2 and 11.3: Complex Inheritance and Karyotypes

http://faculty.irsc.edu/FACULTY/TFischer/bio%201%20files/bio%201%20resources.htm

Incomplete Dominance:The heterozygous phenotype is an intermediate phenotype between the two homozygous phenotypes.

Codominance:Both alleles are expressed in a heterozygous condition.

http://weloveteaching.com/2011/genetics/genetic.html http://www.arrowkranch.com/Ranch_tour/New_pictures/roan_cow.gif

Sickle Cell Disease is actually codominant. If a person possesses both genes, some of their red blood cells will appear normal and others will appear sickled. Blood types are also codominant.

http://www.biologycorner.com/anatomy/blood/notes_blood_disorders.html

Allele from

Parent 1

Allele from

Parent 2

Genotype of

offspring

Blood types of

offspring

A A AA A A B AB* AB A O AO A B A AB* AB B B BB B B O BO B O O OO O

Karyotype #1

KARYOTYPE #2

KARYOTYPE #3

Karyotype #4

Answers:

1) Normal Male2) Normal Female3) Female with Down Syndrome4) Female with Turner Syndrome