Question 1

Which of the following would not be a possible way to list someone's genotype?

Accepted Answer

A)   BB
B)   Bb
C)   AB
D)   bb
E)   AAF) B) and E)
G) D) and E)

Question 2

Which of the following represents a cross to determine if an individual is homozygous or heterozygous dominant?

Accepted Answer

A)   Aa x aa
B)   AA x AA
C)   aa x aa
D)   Aa x AA
E)   Aa x AaF) C) and D)
G) B) and C)

Question 3

An allele is to a gene, as a locus is to a

Accepted Answer

A)   gamete.
B)   phenotype.
C)   chromosome.
D)   genotype.
E)   unit of heredity.F) A) and B)
G) A) and C)

Question 4

If the mother's genotype is aa, all of her eggs will be identical for this trait.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following X-linked recessive disorders is characterized by a degeneration of the muscles?

Accepted Answer

A)   Fragile X
B)   Duchenne's
C)   color blindness
D)   hemophilia
E)   malariaF) A) and B)
G) All of the above

Exam 20: Patterns of Genetic Inheritance

If the mother's genotype is aa, all of her eggs will be identical for this trait.