MICR 351 FINAL TESTED QUESTIONS
WITH REVISED ANSWERS ALL
UPDATED!!
The primary factor determining the life cycle of an animal virus is the physical form of
the:
a. envelope
b. capsid
c. genome
d. receptor
e. burst - Answer-C
Runoff from agricultural fields, lawns, and golf courses can cause an overgrowth of
microbes due to:
a. eutrophication
b. starvation response
c. oligotrophy
d. antisepsis
e. pasteurization - Answer-A
Bacteria are capable of __________ transmission—the transfer of genetic information
from one cell to another, often involving different species.
a. vertical
b. horizontal
c. parallel
d. normal
e. pseudogene - Answer-B
Which of the following is NOT true about the two strands of DNA in a double helix?
a. The bases of one strand form peptide bond with the base of the other.
b. They are antiparallel.
c. They are complementary.
d. They have equal number of adenine and thymine.
e. They have base-stacking interactions. - Answer-A
The semiconservative mechanism of replication provides for each daughter duplex to be
checked for __________, based on its parent strand.
a. pseudogenes
b. introns
c. plasmids
d. redundancy
, e. accuracy - Answer-E
Which of the following is NOT true of DNA replication in E. coli?
a. Primer is needed for DNA synthesis.
b. It is bidirectional.
c. One new strand is synthesized discontinuously.
d. Synthesis occurs in the 3'-to-5' direction. - Answer-D
Sigma factors are required for:
a. Translational elongation
b. Transcriptional elongation
c. Transcriptional initiation
d. Translational initiation
e. Two of the above
f. None of the above - Answer-C
Which form of RNA has the task of carrying amino acids?
a. mRNA
b. rRNA
c. sRNA
d. tmRNA
e. tRNA - Answer-E
What kind of gene expression controls are revealed by operon fusions?
a. transcriptional
b. translational
c. both transcriptional and translational
d. posttranslational
e. none of the above - Answer-A
A mutation that does not change the amino acid sequence is a(n):
a. inversion mutation
b. nonsence mutation
c. silent mutation
d. frame-shift mutation
e. missense mutation - Answer-C
The lagging strand is synthesized __________ , while the leading strand can be
synthesized __________.
a. continuously; discontinuously
b. discontinuously; continuously
c. 5'-to-3'; 3'-to-5'
d. 3'-to-5'; 5'-to-3'
e. quickly; slowly - Answer-B
WITH REVISED ANSWERS ALL
UPDATED!!
The primary factor determining the life cycle of an animal virus is the physical form of
the:
a. envelope
b. capsid
c. genome
d. receptor
e. burst - Answer-C
Runoff from agricultural fields, lawns, and golf courses can cause an overgrowth of
microbes due to:
a. eutrophication
b. starvation response
c. oligotrophy
d. antisepsis
e. pasteurization - Answer-A
Bacteria are capable of __________ transmission—the transfer of genetic information
from one cell to another, often involving different species.
a. vertical
b. horizontal
c. parallel
d. normal
e. pseudogene - Answer-B
Which of the following is NOT true about the two strands of DNA in a double helix?
a. The bases of one strand form peptide bond with the base of the other.
b. They are antiparallel.
c. They are complementary.
d. They have equal number of adenine and thymine.
e. They have base-stacking interactions. - Answer-A
The semiconservative mechanism of replication provides for each daughter duplex to be
checked for __________, based on its parent strand.
a. pseudogenes
b. introns
c. plasmids
d. redundancy
, e. accuracy - Answer-E
Which of the following is NOT true of DNA replication in E. coli?
a. Primer is needed for DNA synthesis.
b. It is bidirectional.
c. One new strand is synthesized discontinuously.
d. Synthesis occurs in the 3'-to-5' direction. - Answer-D
Sigma factors are required for:
a. Translational elongation
b. Transcriptional elongation
c. Transcriptional initiation
d. Translational initiation
e. Two of the above
f. None of the above - Answer-C
Which form of RNA has the task of carrying amino acids?
a. mRNA
b. rRNA
c. sRNA
d. tmRNA
e. tRNA - Answer-E
What kind of gene expression controls are revealed by operon fusions?
a. transcriptional
b. translational
c. both transcriptional and translational
d. posttranslational
e. none of the above - Answer-A
A mutation that does not change the amino acid sequence is a(n):
a. inversion mutation
b. nonsence mutation
c. silent mutation
d. frame-shift mutation
e. missense mutation - Answer-C
The lagging strand is synthesized __________ , while the leading strand can be
synthesized __________.
a. continuously; discontinuously
b. discontinuously; continuously
c. 5'-to-3'; 3'-to-5'
d. 3'-to-5'; 5'-to-3'
e. quickly; slowly - Answer-B
