Multiple Choice
King George III of England and other members of the royal family were afflicted with a series of strange, seemingly unrelated symptoms including abdominal pain, rapid pulse, convulsions, and insanity. It has been determined that he likely suffered from porphyria, caused by a mutation in a single allele. What is the genetic term describing the alteration of multiple, distinct traits of an organism by a mutation in a single gene?
A) incomplete dominance
B) pleiotropy
C) epistasis
D) codominance
E) incomplete penetrance
Correct Answer:

Verified
Correct Answer:
Verified
Q47: Alleles of the Sbe1 gene, which controls
Q48: Which mode of inheritance results in the
Q49: The amount of enzyme activity in a
Q50: In Labrador retrievers, coat color is controlled
Q51: In sheep, coat color is influenced by
Q53: Most people with the dominant mutant polydactyly
Q54: Which mode of inheritance produces heterozygotes with
Q55: Brachydactyly type D is human autosomal dominant
Q56: You are looking at the color of
Q57: Most combinations of different ABO alleles result