Question 1

What did scientists discover was the primary cause for a genetically controlled language disorder in humans?

Accepted Answer

A)   The cause was one mutation in a single gene on one chromosome.
B)   The disorder was not inherited but related to diet.
C)   Affected family members were lacking vocal chords.
D)   The cause was multiple mutations in multiple genes on one chromosome.
E)   The cause was multiple mutations in multiple genes on many chromosomes.F) D) and E)
G) A) and D)

Question 2

A group of genes,a promoter,and an operator that control transcription are called a(n)

Accepted Answer

A)   translational unit.
B)   chromosome.
C)   ribosome.
D)   envelope.
E)   operon.F) A) and B)
G) A) and C)

Question 3

The stage of viral replication in which the viral nucleic acid is released inside the cell is

Accepted Answer

A)   penetration.
B)   release.
C)   attachment.
D)   synthesis.
E)   assembly.F) B) and E)
G) A) and B)

Question 4

Antibiotic resistance enhances the reproductive success of bacteria that have it.

Accepted Answer

A) True 
 B)False

Question 5

A change in a cell's DNA sequence is

Accepted Answer

A)   replication.
B)   transcription.
C)   a mutation.
D)   translation.
E)   an operon.F) All of the above
G) A) and D)

Question 6

RNA processing involves splicing.

Accepted Answer

A) True 
 B)False

Question 7

The step of translation in which an mRNA,a small ribosomal subunit,and the initiator tRNA are aligned together is

Accepted Answer

A)   initiation.
B)   mitosis.
C)   elongation.
D)   termination.
E)   transcription.F) A) and B)
G) C) and D)

Question 8

Mutations produce new alleles that may

Accepted Answer

A)   be beneficial to the organism's fitness.
B)   have no effect on the organism's fitness.
C)   decrease the organism's fitness. 
D)   increase diversity at a genetic locus.
E)   All answers are correct.F) B) and C)
G) C) and E)

Question 9

A DNA sequence that signals the start of a gene is

Accepted Answer

A)   a codon.
B)   an anticodon.
C)   a terminator.
D)   a promoter.
E)   an amino acid attachment site.F) A) and D)
G) None of the above

Question 10

Most antibiotics are not effective against viruses because they ________ and this does not affect the activity of viruses.

Accepted Answer

A)   inhibit synthesis of cell walls
B)   destroy DNA and RNA
C)   inhibit all protein synthesis
D)   target envelopes
E)   inhibit reverse transcriptaseF) B) and E)
G) D) and E)

Question 11

The amino acid that starts every protein and that is encoded by ACG is methionine.

Accepted Answer

A) True 
 B)False

Question 12

Why would it take more energy to separate DNA with the sequence GCGCGCGC and its complementary strand than the sequence ATATATAT and its complementary strand?

Accepted Answer

A)   A's and T's do not form pairs between separate DNA strands.
B)   The helix is wound more tightly in G and C base pairs.
C)   G and C base pairs form more hydrogen bonds between DNA strands.
D)   The sequence containing G's and C's is longer.
E)   G and C base pairs form more covalent bonds between DNA strands.F) B) and D)
G) B) and C)

Question 13

If you were looking at an electron micrograph of a mRNA molecule being translated by many ribosomes at once,you would be looking at a picture from a prokaryote.

Accepted Answer

A) True 
 B)False

Question 14

The step of translation in which amino acids are added to the growing polypeptide is

Accepted Answer

A)   mitosis.
B)   initiation.
C)   elongation.
D)   termination.
E)   transcription.F) A) and C)
G) A) and D)

Question 15

You are sorting labels for a diagram about viral replication,and you find a part of the diagram that says: "the stage of viral replication in which viral components are put together to form new viruses," you would look for a label referring to

Accepted Answer

A)   release.
B)   assembly.
C)   attachment.
D)   penetration.
E)   synthesis.F) A) and D)
G) A) and E)

Exam 7: DNA Structure and Gene Function

A group of genes,a promoter,and an operator that control transcription are called a(n)

Correct Answer
verified

The amino acid that starts every protein and that is encoded by ACG is methionine.

Correct Answer
verified

You are sorting labels for a diagram about viral replication,and you find a part of the diagram that says: "the stage of viral replication in which viral components are put together to form new viruses," you would look for a label referring to

Correct Answer
verified

What did scientists discover was the primary cause for a genetically controlled language disorder in humans?

Correct Answer
verified

The stage of viral replication in which the viral nucleic acid is released inside the cell is

Correct Answer
verified

A DNA sequence that signals the start of a gene is

Correct Answer
verified

Mutations produce new alleles that may

Correct Answer
verified

A change in a cell's DNA sequence is

Correct Answer
verified

The step of translation in which an mRNA,a small ribosomal subunit,and the initiator tRNA are aligned together is

Correct Answer
verified

Most antibiotics are not effective against viruses because they ________ and this does not affect the activity of viruses.

Correct Answer
verified

If you were looking at an electron micrograph of a mRNA molecule being translated by many ribosomes at once,you would be looking at a picture from a prokaryote.

Correct Answer
verified

The step of translation in which amino acids are added to the growing polypeptide is

Correct Answer
verified

RNA processing involves splicing.

Correct Answer
verified

Antibiotic resistance enhances the reproductive success of bacteria that have it.

Correct Answer
verified

Why would it take more energy to separate DNA with the sequence GCGCGCGC and its complementary strand than the sequence ATATATAT and its complementary strand?

Correct Answer
verified

Exam 7: DNA Structure and Gene Function

A group of genes,a promoter,and an operator that control transcription are called a(n)

Correct AnswerverifiedShow Answer

The amino acid that starts every protein and that is encoded by ACG is methionine.

Correct AnswerverifiedShow Answer

You are sorting labels for a diagram about viral replication,and you find a part of the diagram that says: "the stage of viral replication in which viral components are put together to form new viruses," you would look for a label referring to

Correct AnswerverifiedShow Answer

What did scientists discover was the primary cause for a genetically controlled language disorder in humans?

Correct AnswerverifiedShow Answer

The stage of viral replication in which the viral nucleic acid is released inside the cell is

Correct AnswerverifiedShow Answer

A DNA sequence that signals the start of a gene is

Correct AnswerverifiedShow Answer

Mutations produce new alleles that may

Correct AnswerverifiedShow Answer

A change in a cell's DNA sequence is

Correct AnswerverifiedShow Answer

The step of translation in which an mRNA,a small ribosomal subunit,and the initiator tRNA are aligned together is

Correct AnswerverifiedShow Answer

Most antibiotics are not effective against viruses because they ________ and this does not affect the activity of viruses.

Correct AnswerverifiedShow Answer

If you were looking at an electron micrograph of a mRNA molecule being translated by many ribosomes at once,you would be looking at a picture from a prokaryote.

Correct AnswerverifiedShow Answer

The step of translation in which amino acids are added to the growing polypeptide is

Correct AnswerverifiedShow Answer

RNA processing involves splicing.

Correct AnswerverifiedShow Answer

Antibiotic resistance enhances the reproductive success of bacteria that have it.

Correct AnswerverifiedShow Answer

Why would it take more energy to separate DNA with the sequence GCGCGCGC and its complementary strand than the sequence ATATATAT and its complementary strand?

Correct AnswerverifiedShow Answer

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