(CELL BIOLOGY) BS 161 EXAM 2 REAL EXAM
QUESTIONS WITH CORRECT ANSWERS
LATEST UPDATE GRADED A+
If a cell contained a mutation in the gene that encodes FtsZ, what process would
be affected?
A. Septation
B. Cytokinesis
C. Prophase
D. DNA Synthesis
E. Cohesin cleavage --CORRECT ANSWER--A
The accommodation of the very long DNA strands that are part of a
chromosome into the limited space of the nucleus is achieved by coiling the
DNA around beads of histones into repeating subunits. These DNA-wrapped
histones are called:
A. Solenoids
B. Nucleosomes
C. Chromatin loops
D. Rosettes --CORRECT ANSWER--B
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,The point of constriction on chromosomes that contains certain repeated DNA
sequences that bind specific proteins is called:
A. The kinetochore
B. The centromere
C. The cohesin complex
D. The centriole
E. The centrosome --CORRECT ANSWER--B
Eukaryotic chromosomes are composed of a complex of 60% protein and 40%
DNA. This complex is referred to as:
A. The histone complex
B. Chromatin
C. The kinetochore
D. Cohesin --CORRECT ANSWER--B
The number of chromosomes characteristic of diploid eukaryotic cells, in
general:
A. is 46.
B. can be predicted by the size of the organism.
C. changes as each organism grows and ages.
D. varies considerably from 2 to over 1000 in different species. --CORRECT
ANSWER--D
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, In bacterial cell division, the cell divides into two nearly equal halves. This
process is referred to as:
A. binary fission
B. mitosis
C. fusion
D. meiosis
E. cytokinesis --CORRECT ANSWER--A
How does the organization of the bacterial genome differ from the organization
of the eukaryotic genome?
A. The compaction of the eukaryotic genome involves structural maintenance of
chromosome (SMC) proteins, and the compaction of the bacterial genome does
not.
B. Most bacterial chromosomes are circular and the eukaryotic chromosomes
contained in the nucleus are not.
C. Bacterial chromosomes are made up of RNA and eukaryotic chromosomes
are made up of DNA.
D. The eukaryotic genome is found on chromosomes and there are no
chromosomes in bacterial cells.
E. Eukaryotic chromosomes have to be tightly packed to fit into the nucleus,
and bacterial chromosomes do not require tight packing to fit into the cell. --
CORRECT ANSWER--B
The division of a bacterial cell occurs as the:
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QUESTIONS WITH CORRECT ANSWERS
LATEST UPDATE GRADED A+
If a cell contained a mutation in the gene that encodes FtsZ, what process would
be affected?
A. Septation
B. Cytokinesis
C. Prophase
D. DNA Synthesis
E. Cohesin cleavage --CORRECT ANSWER--A
The accommodation of the very long DNA strands that are part of a
chromosome into the limited space of the nucleus is achieved by coiling the
DNA around beads of histones into repeating subunits. These DNA-wrapped
histones are called:
A. Solenoids
B. Nucleosomes
C. Chromatin loops
D. Rosettes --CORRECT ANSWER--B
1|Page
,The point of constriction on chromosomes that contains certain repeated DNA
sequences that bind specific proteins is called:
A. The kinetochore
B. The centromere
C. The cohesin complex
D. The centriole
E. The centrosome --CORRECT ANSWER--B
Eukaryotic chromosomes are composed of a complex of 60% protein and 40%
DNA. This complex is referred to as:
A. The histone complex
B. Chromatin
C. The kinetochore
D. Cohesin --CORRECT ANSWER--B
The number of chromosomes characteristic of diploid eukaryotic cells, in
general:
A. is 46.
B. can be predicted by the size of the organism.
C. changes as each organism grows and ages.
D. varies considerably from 2 to over 1000 in different species. --CORRECT
ANSWER--D
2|Page
, In bacterial cell division, the cell divides into two nearly equal halves. This
process is referred to as:
A. binary fission
B. mitosis
C. fusion
D. meiosis
E. cytokinesis --CORRECT ANSWER--A
How does the organization of the bacterial genome differ from the organization
of the eukaryotic genome?
A. The compaction of the eukaryotic genome involves structural maintenance of
chromosome (SMC) proteins, and the compaction of the bacterial genome does
not.
B. Most bacterial chromosomes are circular and the eukaryotic chromosomes
contained in the nucleus are not.
C. Bacterial chromosomes are made up of RNA and eukaryotic chromosomes
are made up of DNA.
D. The eukaryotic genome is found on chromosomes and there are no
chromosomes in bacterial cells.
E. Eukaryotic chromosomes have to be tightly packed to fit into the nucleus,
and bacterial chromosomes do not require tight packing to fit into the cell. --
CORRECT ANSWER--B
The division of a bacterial cell occurs as the:
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