BIOL 133 Week 7 Quiz | Assignment Help | APUS
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BIOL 133 Week 7 Quiz | Assignment Help | APUS
Week 7 Quiz
Question 1 of 10
If there are 8 centromeres in metaphase, how many
centromeres will be present in anaphase?
o
4
o
8
o
16
o
32
Damaged DNA can potentially be repaired during which
checkpoint. Select all that apply.
o
G1
o
S
o
G2
o
G0
o
E.
M
Question 3 of 10
In nature, there is an exception to every rule. Of the
species below, which one has a very unusual genome that violates the “rule”?
o
Borrelia burgdorferi, the bacterium
responsible for Lyme disease, has a linear genome and up to 21 plasmids.
o
Feedback: Except in very rare cases like
Borrelia, bacteria (prokaryotes) have their DNA in circular chromosomes.
Plasmids, however, are common in bacteria, so that aspect is not unusual.
o
E. coli, a common bacterium in the human
intestine, has DNA nucleotides A, T, C, and G, with only one OH group on the
sugar moiety.
o
Humans have a genome formed from 23 pairs
of linear chromosomes, each of which is so long that it must be wrapped up and
condensed into a special structure to fit in the nucleus.
o
Arabidopsis pollen is haploid, carrying
only one copy each of five linear chromosomes.
When the p53 gene is damaged, which event may happen?
o
Cells can divide uncontrollobly
o
Cells will fix the DNA pass the G1
checkpoint
o
Cells will pass the G2 checkpoint
o
Cells will always undergo apoptosis
Question 5 of 10
A cell’s entire amount of hereditary information is
the
o
nucleoid
o
nucleus
o
genome
o
DNA
Place the order of events in chromosome packaging from
beginning to end.
o
DNA double helix, chromatin, nucleosomes,
sister chromatids
o
DNA double helix, nucleosome, sister
chromatids, chromatin
o
sister chromatids, DNA double helix,
chromatin, nucleosome
o
Chromatin, nucleosomes, DNA double helix,
sister chromatids
If a researcher looks at a cell and notices a straight
line of sister chromatids, which phase are they viewing?
o
interphase
o
prophase
o
prometaphase
o
metaphase
o
anaphase
o
F. telophase
Question 8 of 10
A large cell will be initiated to divide because
o
a decrease in surface-to-volume ratio
o
an increase in surface-to-volume ratio
o
crowding from smaller cells
o
large cells do not experience quiescent
stage
o
large cells use more nutrients than small
cells
Question 9 of 10
Which molecule initiates the halt of the cycle when
damaged DNA is detected in G1?
o
Rb
o
p53
o
Cdk/cyclin complex
o
p21
o
E2F
Question 10 of 10
o
diploid
o
egg
o
somatic
o
gamete
o
sperm
o
haploid
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