Brock Biology of Microorganisms, 16th
Global Edition Test Bank by Madigan,
ISBN: 9781292404790, All 34 Chapters
Covered, Verified Latest Edition
The function of the DNA polymerase is to catalyze
A) the addition of deoxynucleotides.
B) the formation of RNA primers.
C) the addition of ribonucleotides.
D) hydrogen bonding between complementary base pairs.ANSWER- ✓A) the addition of
deoxynucleotides.
DNA replication is started with a(n) ________, which, in most cases, in vivo is a short stretch of
________.
A) promoter / DNA
B) mRNA / RNA
C) primer / RNA
D) ribosome-binding sequence / DNAANSWER- ✓C) primer / RNA
The function of RNA polymerase is to
A) catalyze the formation of phosphodiester bonds between deoxyribonucleotids.
B) catalyze the formation of phosphodiester bonds between ribonucleotides.
C) cleave mRNA to remove introns.
D) activate tRNAs.ANSWER- ✓B) catalyze the formation of phosphodiester bonds between
ribonucleotides.
Polycistronic transcription units are common in
A) Archaea.
B) Bacteria.
C) Eukarya.
, D) both Archaea and Bacteria.ANSWER- ✓D) both Archaea and Bacteria.
An operon is a useful genetic element, because it
A) encourages the binding of RNA polymerase.
B) allows coordinated expression of multiple related genes in prokaryotes.
C) translates DNA sequence into amino acid sequence.
D) encourages the binding of ribosomes in the correct location.ANSWER- ✓B) allows
coordinated expression of multiple related genes in prokaryotes.
Plasmids often encode for proteins
A) involved in translation.
B) required for cellular growth.
C) that confer resistance to antibiotics.
D) involved in DNA replicationANSWER- ✓C) that confer resistance to antibiotics.
The codon on the ________ matches with the anticodon on the ________ to direct the addition of
the correct amino acid to the growing polypeptide chain.
A) mRNA / tRNA
B) tRNA / mRNA
C) DNA / mRNA
D) tRNA / rRNAANSWER- ✓A) mRNA / tRNA
The structure and function of a protein are determined by its ________ sequence.
A) nucleotide
B) amino acid
C) ribonucleotide
D) translocationANSWER- ✓B) amino acid
You experimentally change the DNA sequence directly upstream of a start codon of an operon
in E. coli to investigate the function of this region of DNA. Analysis reveals that after the change
the same amount of mRNA is made from the operon, but there are very few proteins made from
the operon. What is the most likely function of the DNA sequence that you changed?
A) The DNA sequence likely functions as a ribosome-binding site.
Global Edition Test Bank by Madigan,
ISBN: 9781292404790, All 34 Chapters
Covered, Verified Latest Edition
The function of the DNA polymerase is to catalyze
A) the addition of deoxynucleotides.
B) the formation of RNA primers.
C) the addition of ribonucleotides.
D) hydrogen bonding between complementary base pairs.ANSWER- ✓A) the addition of
deoxynucleotides.
DNA replication is started with a(n) ________, which, in most cases, in vivo is a short stretch of
________.
A) promoter / DNA
B) mRNA / RNA
C) primer / RNA
D) ribosome-binding sequence / DNAANSWER- ✓C) primer / RNA
The function of RNA polymerase is to
A) catalyze the formation of phosphodiester bonds between deoxyribonucleotids.
B) catalyze the formation of phosphodiester bonds between ribonucleotides.
C) cleave mRNA to remove introns.
D) activate tRNAs.ANSWER- ✓B) catalyze the formation of phosphodiester bonds between
ribonucleotides.
Polycistronic transcription units are common in
A) Archaea.
B) Bacteria.
C) Eukarya.
, D) both Archaea and Bacteria.ANSWER- ✓D) both Archaea and Bacteria.
An operon is a useful genetic element, because it
A) encourages the binding of RNA polymerase.
B) allows coordinated expression of multiple related genes in prokaryotes.
C) translates DNA sequence into amino acid sequence.
D) encourages the binding of ribosomes in the correct location.ANSWER- ✓B) allows
coordinated expression of multiple related genes in prokaryotes.
Plasmids often encode for proteins
A) involved in translation.
B) required for cellular growth.
C) that confer resistance to antibiotics.
D) involved in DNA replicationANSWER- ✓C) that confer resistance to antibiotics.
The codon on the ________ matches with the anticodon on the ________ to direct the addition of
the correct amino acid to the growing polypeptide chain.
A) mRNA / tRNA
B) tRNA / mRNA
C) DNA / mRNA
D) tRNA / rRNAANSWER- ✓A) mRNA / tRNA
The structure and function of a protein are determined by its ________ sequence.
A) nucleotide
B) amino acid
C) ribonucleotide
D) translocationANSWER- ✓B) amino acid
You experimentally change the DNA sequence directly upstream of a start codon of an operon
in E. coli to investigate the function of this region of DNA. Analysis reveals that after the change
the same amount of mRNA is made from the operon, but there are very few proteins made from
the operon. What is the most likely function of the DNA sequence that you changed?
A) The DNA sequence likely functions as a ribosome-binding site.
