lecture 3-5

Question 1

Incomplete dominance:

Answer 1

BB, Bb and bb all differ phenotypically; Bb is intermediate between homozygous phenotypes

Question 2

codominance

Answer 2

BB, Bb and bb all differ phenotypically, but Bb
exhibits phenotypes of both homozygotes

Question 3

An allelic series describes…

Answer 3

the dominance hierarchy of multiple alleles

Question 4

A null allele is…

Answer 4

nonfunctional

Question 5

A hypomorphic allele has ____ function.

Answer 5

partial

Question 6

I^A Encodes…

Answer 6

A Transferase Which Adds Acetylgalactosamine

Question 7

I^B Encodes…

Answer 7

A Transferase Which Adds Galactose

Question 8

I Encodes…

Answer 8

A Non-functional Transferase

Question 9

Wildtype Allele

Answer 9

a functional enzyme or other protein is produced

Question 10

Loss Of Function Allele

Answer 10

an enzyme or other protein is no longer being produced, is produced at lower levels, or is nonfunctional

Question 11

haplosufficiency

Answer 11

Half as much protein is synthesized yet this is
sufficient to achieve the wildtype phenotype