Question 1

Given the sentence "THE FAT CAT ATE THE RED RAT," which of the following would represent a frameshift mutation?

Accepted Answer

A)  THE FAT RAT ATE THE RED CAT
B)  THE CAT ATE THE RED RAT
C)  THE FAC ATA TET HER EDR AT
D)  THE FAT CAT ATE THE RED RATE) A) and B)
F) A) and C)

Question 2

Eukaryotic pre-mRNA molecules are modified

Accepted Answer

A)  in the cytoplasm.
B)  at the ribosome.
C)  inside the nucleus.
D)  as they pass through the nuclear membrane.E) A) and B)
F) B) and D)

Question 3

You are studying an individual with very low levels of insulin in her blood.Further analysis indicates that cells of her pancreas are producing normal levels of this protein, but it is accumulating in the cytoplasm rather than being secreted from the cells.Which hypothesis makes the most sense to explain this observation?

Accepted Answer

A)  A small deletion has removed the nucleotides that code for the signal sequence at the amino terminus of the protein.
B)  A missense mutation has caused premature termination during translation of this protein.
C)  A chromosomal segment that includes the gene for insulin has been inverted.
D)  A two-base deletion near the middle of the gene has altered the reading frame during translation of the protein.E) B) and C)
F) A) and D)

Question 4

In prokaryotes, the RNA polymerase holoenzyme consists of

Accepted Answer

A)  the core polymerase plus two alpha subunits.
B)  the core polymerase plus two beta subunits.
C)  the core polymerase plus two alpha subunits, two beta subunits, and a sigma subunit.
D)  the core polymerase plus a sigma subunit.E) None of the above
F) B) and C)

Question 5

Gene ________ refers to the combined processes of transcription and translation.

Accepted Answer

A)  expression
B)  replication
C)  modification
D)  regulationE) B) and C)
F) A) and B)

Question 6

Which statement about the genetic code is false?

Accepted Answer

A)  There is no punctuation or spacing between codons.
B)  Nucleotides are always read in groups of three.
C)  Every codon codes for one amino acid.
D)  Some amino acids are specified by more than one codon.E) A) and C)
F) B) and C)

Question 7

During translation in prokaryotes, formation of the initiation complex requires all of the following except

Accepted Answer

A)  a small ribosomal subunit.
B)  mRNA.
C)  tRNA charged with N-formylmethionine.
D)  RNA polymerase.E) A) and D)
F) B) and C)

Exam 15: Genes and How They Work

Which statement about the genetic code is false?

Correct Answer
verified

Given the sentence "THE FAT CAT ATE THE RED RAT," which of the following would represent a frameshift mutation?

Correct Answer
verified

Correct Answer
verified

In prokaryotes, the RNA polymerase holoenzyme consists of

Correct Answer
verified

During translation in prokaryotes, formation of the initiation complex requires all of the following except

Correct Answer
verified

Gene ________ refers to the combined processes of transcription and translation.

Correct Answer
verified

Eukaryotic pre-mRNA molecules are modified

Correct Answer
verified

Exam 15: Genes and How They Work

Which statement about the genetic code is false?

Correct AnswerverifiedShow Answer

Given the sentence "THE FAT CAT ATE THE RED RAT," which of the following would represent a frameshift mutation?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In prokaryotes, the RNA polymerase holoenzyme consists of

Correct AnswerverifiedShow Answer

During translation in prokaryotes, formation of the initiation complex requires all of the following except

Correct AnswerverifiedShow Answer

Gene ________ refers to the combined processes of transcription and translation.

Correct AnswerverifiedShow Answer

Eukaryotic pre-mRNA molecules are modified

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified