Chapter 14 Pt 2

Question 1

Incomplete dominance

Answer 1

The phenotype of the heterozygote is the intermediate of the phenotype a of homozygous individuals for either allele

• red white and pink example
  1: 2:1 ratio

Question 2

Codiminance

Answer 2

In a heterozygous individual, the phenotypes of both alleles are fully expressed
-I^A and I^B are codominant alleles

Question 3

Multiple alleles

Answer 3

A trait that is determined by more than two alleles at a single locus
-3 alleles: I^A, I^B, and i

Question 4

Antibodies

Answer 4

Proteins produced by cells in our immune system that bind to specific foreign substances called antigens

Question 5

Antigens

Answer 5

Illicit an immune response in individuals that do not produce them

Question 6

ABO locus

Answer 6

Anti-A antibodies clump with ‘A’ sugars when present

Anti-A antibodies clump with ‘B’ sugars when present

Question 7

What do we call clumping?

Answer 7

Agglutination

Question 8

Polygenic inheritance

Answer 8

The additive affect of 3 or more genes on a single trait

Question 9

Quantitative traits (AKA) continuous

Answer 9

Have a continuous range of variation

• human height
• polygenic

Question 10

Discrete traits (AKA) qualitative traits

Answer 10

Fit into discrete categories

• yellow or green peas
• single gene traits

Question 11

Complete dominance

Answer 11

Phenotype of the heterozygote (Aa) is indistinguishable from the phenotype of the homozygous dominant (AA)