there is no dominant allele, there is no recessive allele. both alleles “blend” to result in a...
TRANSCRIPT
There is no dominant allele, There is no recessive allele.Both alleles “blend” to result in a third phenotype.
Traits that are Controlled by Three or More AllelesAn Individual Has a Combination of Two of These
Allele A and Allele B are Codominant over Allele O (recessive)
Blood Type Determined by the
Proteins on the Surface of Red Blood Cells
Type A Protein A
Type B Protein B
Type AB Proteins A & B
Type O No Proteins
Key
Red: Type A
Blue: Type B
Red/Blue: Type AB
White: Type O
What are the Genotypes of Each Individual?
Traits that are Controlled by GenesFound on the X Chromosome but
not the Y Chormosome
Sex Linked Recessive Traits In Human Beings
Red Green Colorblindness
Hemophilia
Multiple Gene (Polygenic) Inheritance
Gametes
ABC
ABc
AbC
Abc
aBC
aBc
abC
abc
ABC 6 5 5 4 5 4 4 3
ABc 5 4 4 3 4 3 3 2
AbC 5 4 4 3 4 3 3 2
Abc 4 3 3 2 3 2 2 1
aBC 5 4 4 3 4 3 3 2
aBc 4 3 3 2 3 2 2 1
abC 4 3 3 2 3 2 2 1
abc 3 2 2 1 2 1 1 0
Table 1. Polygenic inheritance in people showing a cross between two mulatto parents (AaBbCc x AaBbCc). The
offspring contain seven different shades of skin color based on the number of capital letters in each genotype.