Question 1

Imagine that a researcher is studying a mouse that carries a mutation in Pax7a gene that is involved in muscle development. To his surprise, these Pax7 mutant mice appear relatively normal. What is a possible explanation for this?

Accepted Answer

A)  Other members of the Pax gene family have redundant functions in muscle development (and can compensate for the Pax7 mutation) .
B)  The normal copy of Pax7 on the corresponding homologous chromosome is sufficient for mouse survival.
C)  These Pax7 mutant mice may have a synonymous mutation.
D)  All of these choices are correct.E) B) and C)
F) A) and B)

Question 2

In organisms with large genomes, inversions are more likely to be tolerated if the breakpoints occur in:

Accepted Answer

A)  coding DNA.
B)  noncoding DNA.
C)  open reading frames.
D)  closed reading frames.
E)  reciprocal translocations.F) A) and E)
G) A) and B)

Question 3

In large genomes, MOST reciprocal translocations occur in:

Accepted Answer

A)  coding DNA.
B)  noncoding DNA.
C)  open reading frames.
D)  closed reading frames.
E)  inversion regions.F) C) and D)
G) B) and D)

Question 4

_____ mutations are important to the evolutionary process; most cancers result from _____ mutations.

Accepted Answer

A)  Somatic; germ-line
B)  Germ-line; somatic
C)  Germ-line; heritable
D)  Somatic; heritable
E)  Point; germ-lineF) A) and E)
G) A) and B)

Question 5

A chromosomal mutation where a segment breaks off, flips, and then reattaches itself is called a(n) :

Accepted Answer

A)  inversion.
B)  duplication.
C)  translocation.
D)  deletion.
E)  reciprocal translocation.F) C) and D)
G) A) and B)

Exam 14: Mutation and Dna Repair

In large genomes, MOST reciprocal translocations occur in:

Correct Answer
verified

Imagine that a researcher is studying a mouse that carries a mutation in Pax7a gene that is involved in muscle development. To his surprise, these Pax7 mutant mice appear relatively normal. What is a possible explanation for this?

Correct Answer
verified

_ mutations are important to the evolutionary process; most cancers result from _ mutations.

Correct Answer
verified

A chromosomal mutation where a segment breaks off, flips, and then reattaches itself is called a(n) :

Correct Answer
verified

In organisms with large genomes, inversions are more likely to be tolerated if the breakpoints occur in:

Correct Answer
verified

Exam 14: Mutation and Dna Repair

In large genomes, MOST reciprocal translocations occur in:

Correct AnswerverifiedShow Answer

Imagine that a researcher is studying a mouse that carries a mutation in Pax7a gene that is involved in muscle development. To his surprise, these Pax7 mutant mice appear relatively normal. What is a possible explanation for this?

Correct AnswerverifiedShow Answer

_____ mutations are important to the evolutionary process; most cancers result from _____ mutations.

Correct AnswerverifiedShow Answer

A chromosomal mutation where a segment breaks off, flips, and then reattaches itself is called a(n) :

Correct AnswerverifiedShow Answer

In organisms with large genomes, inversions are more likely to be tolerated if the breakpoints occur in:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

_ mutations are important to the evolutionary process; most cancers result from _ mutations.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified