Question 1

What type of mutation has occurred in the following? Normal allele 5' - GGAAUGAAACAGGAACCC - 3'
Mutant allele 5' - GGAAUGAAAUCAGGAACCC - 3'

Accepted Answer

A)  Insertion of one base
B)  Substitution
C)  Deletion of one base
D)  Insertion of two bases
E)  Deletion of two basesF) A) and C)
G) A) and E)

Question 2

Which mutation in DNA would lead to the change of a single amino acid in a protein?

Accepted Answer

A)  A nonsense mutation
B)  A one base deletion
C)  A one base insertion
D)  A missense mutation
E)  A frameshiftF) D) and E)
G) C) and E)

Question 3

In a "silent" mutation:

Accepted Answer

A)  The codon that mutates causes a change in the amino acid specified
B)  The codon that mutates does not cause a change in the amino acid specified
C)  The codon that mutates causes a stop codon to occur instead of the placement of an amino acid
D)  The mutation does not occur in a codon
E)  The mutation is not in DNAF) B) and E)
G) All of the above

Question 4

FOXP2 sequences were the most different between mice and _____.

Accepted Answer

A)  Rhesus monkeys
B)  Gorillas
C)  Chimpanzees
D)  Humans
E)  All had the same number of changes from the mouse sequenceF) A) and B)
G) D) and E)

Question 5

If bacteria are infected with bacteriophage containing radioactive ____ the bacteria will now be radioactive.

Accepted Answer

A)  Sulfur
B)  Iron
C)  Phosphate or sulfur
D)  Iron or sulfur
E)  PhosphateF) C) and D)
G) A) and C) E

Question 6

What would be the first codon translated in the mRNA sequence 5' - GGAAUGAAACAGGAACCC - 3'?

Accepted Answer

A)  GGA
B)  CCC
C)  AUG
D)  GAA
E)  AAUF) A) and E)
G) B) and D)

Question 7

How did the researchers estimate that the original mutation happened 3-400,000 years ago?

Accepted Answer

A)  By examining the fossil record
B)  Using a molecular clock
C)  They found the mutation in chimpanzee DNA
D)  They found the mutation in Neandertal DNA
E)  They found the mutation in 300,000 year old human remainsF) A) and D)
G) D) and E)

Question 8

If the DNA in a cell consists of 20% A,it will be ___ T.

Accepted Answer

A)  30%
B)  80%
C)  40%
D)  20%
E)  10%F) A) and B)
G) A) and C) D

Question 9

The DNA sequence 5' - ATGCATGC - 3' will pair with which of the following RNA strands?

Accepted Answer

A)  5' - UAGCUAGC - 3'
B)  3' - UAGCUAGC - 5'
C)  3' - AUGCAUGC - 5'
D)  3' - TAGCTAGC - 5'
E)  5' - TAGCTAGC - 3'F) B) and C)
G) B) and E)

Question 10

A somatic mutation is a mutation that occurs in cells that give rise to gametes.

Accepted Answer

A) True 
 B)False

Question 11

The strand of DNA that encodes the RNA molecule during transcription is the:

Accepted Answer

A)  Lagging strand
B)  Leading strand
C)  Codon strand
D)  Template strand
E)  Parent strandF) A) and B)
G) A) and C)

Question 12

A change in a cell's DNA sequence is:

Accepted Answer

A)  Replication
B)  Transcription
C)  A mutation
D)  Translation
E)  An operonF) D) and E)
G) C) and E)

Question 13

A proteome is all of the proteins an organism expresses throughout its life.

Accepted Answer

A) True 
 B)False

Question 14

An organism that receives recombinant DNA:

Accepted Answer

A)  Has a genetic disease
B)  Is a transgenic organism
C)  Will develop cancer
D)  Is sterile
E)  Is a new speciesF) C) and E)
G) B) and D)

Question 15

Based just on what is known about FOXP2,could Neandertals speak?

Accepted Answer

A)  No, they have the same FOXP2 mutation as humans
B)  Yes, they have the same FOXP2 mutation as humans
C)  Yes, they have the same FOXP2 sequence as chimpanzees
D)  No, they have the same FOXP2 sequence as chimpanzees
E)  Yes, they have the same FOXP2 sequence as both humans and chimpanzeesF) A) and E)
G) None of the above

Question 16

In eukaryotes an mRNA molecule can only be translated by one ribosome at a time.

Accepted Answer

A) True 
 B)False

Question 17

How did the researchers initially estimate that the original mutation happened 200,000 years ago?

Accepted Answer

A)  They found the mutation in Neandertal DNA
B)  By examining the fossil record
C)  They found the mutation in chimpanzee DNA
D)  Using a molecular clock
E)  They found the mutation in 300,000-year-old human remainsF) B) and E)
G) B) and C)

Question 18

An antisense RNA is complementary to a mRNA and could:

Accepted Answer

A)  Prevent transcription of the mRNA
B)  Increase translation of the mRNA
C)  Increase transcription of the mRNA
D)  Prevent translation of the mRNA
E)  Mutate the mRNA sequenceF) B) and E)
G) All of the above D

Question 19

Amanatin is a toxin found in the death cap mushroom,Amanita phalloides.It inhibits RNA polymerase,thus blocking:

Accepted Answer

A)  Transcription
B)  Translation
C)  Replication
D)  Cell division
E)  RNA splicingF) C) and E)
G) None of the above

Question 20

There are only two main types of RNA needed to make proteins.They are tRNA and rRNA.

Accepted Answer

A) True 
 B)False

Exam 7: Dna Structure and Gene Function

What type of mutation has occurred in the following? Normal allele 5' - GGAAUGAAACAGGAACCC - 3' Mutant allele 5' - GGAAUGAAAUCAGGAACCC - 3'

Correct AnswerverifiedShow Answer

Which mutation in DNA would lead to the change of a single amino acid in a protein?

Correct AnswerverifiedShow Answer

In a "silent" mutation:

Correct AnswerverifiedShow Answer

FOXP2 sequences were the most different between mice and _____.

Correct AnswerverifiedShow Answer

If bacteria are infected with bacteriophage containing radioactive ____ the bacteria will now be radioactive.

Correct AnswerverifiedE

What would be the first codon translated in the mRNA sequence 5' - GGAAUGAAACAGGAACCC - 3'?

Correct AnswerverifiedShow Answer

How did the researchers estimate that the original mutation happened 3-400,000 years ago?

Correct AnswerverifiedShow Answer

If the DNA in a cell consists of 20% A,it will be ___ T.

Correct AnswerverifiedD

The DNA sequence 5' - ATGCATGC - 3' will pair with which of the following RNA strands?

Correct AnswerverifiedShow Answer

A somatic mutation is a mutation that occurs in cells that give rise to gametes.

Correct AnswerverifiedShow Answer

The strand of DNA that encodes the RNA molecule during transcription is the:

Correct AnswerverifiedShow Answer

A change in a cell's DNA sequence is:

Correct AnswerverifiedShow Answer

A proteome is all of the proteins an organism expresses throughout its life.

Correct AnswerverifiedShow Answer

An organism that receives recombinant DNA:

Correct AnswerverifiedShow Answer

Based just on what is known about FOXP2,could Neandertals speak?

Correct AnswerverifiedShow Answer

In eukaryotes an mRNA molecule can only be translated by one ribosome at a time.

Correct AnswerverifiedShow Answer

How did the researchers initially estimate that the original mutation happened 200,000 years ago?

Correct AnswerverifiedShow Answer

An antisense RNA is complementary to a mRNA and could:

Correct AnswerverifiedD

Amanatin is a toxin found in the death cap mushroom,Amanita phalloides.It inhibits RNA polymerase,thus blocking:

Correct AnswerverifiedShow Answer

There are only two main types of RNA needed to make proteins.They are tRNA and rRNA.

Correct AnswerverifiedShow Answer

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E

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D

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D

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