Describe the stages of the cell cycle, including deoxyribonucleic acid (DNA) replication and mitosis, and the importance of the cell cycle to the growth of organisms.
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Q 1/12
Score 0
Part of the cell cycle is shown in this simplified model. This part of the cell cycle is best described as the process that —
30
synthesizes new molecules
maintains genetic homeostasis
duplicates the DNA
completes cell division
Q 2/12
Score 0
People who have leukemia, a cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?
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M phase
S phase
G1 phase
G2 phase
12 questions
Q.
Part of the cell cycle is shown in this simplified model. This part of the cell cycle is best described as the process that —
1
30 sec
B.5.A: Cell Cycle
Q.
People who have leukemia, a cancer that affects white blood cells, are often given Cytarabine. This drug inhibits the synthesis of DNA. Which phase of the cell cycle is most affected by Cytarabine?
2
30 sec
B.5.A: Cell Cycle
Q.
The diagram shows cells in different phases of mitosis. A student is trying to find a cell in a particular phase of mitosis. The student is looking for evidence that spindle fibers are separating the chromosomes to ensure that each new nucleus has one copy of each chromosome. Which cell is in the phase of mitosis that the student is searching for?
3
30 sec
B.5.A: Cell Cycle
Q.
Cells pass through a G checkpoint before entering mitosis. Ideally, if DNA damage is 2 detected, the cells do not enter mitosis until the damage is repaired. Why is DNA damage repaired before cells enter mitosis?
4
30 sec
B.5.A: Cell Cycle
Q.
The model represents the change in the DNA content of a cell during the cell cycle. Which part of the model represents the S phase?
5
30 sec
B.5.A: Cell Cycle
Q.
Scientists can bioengineer skin in a laboratory to treat severe burns and other types of skin injuries. This bioengineered tissue is grown from living cells. The cellular process that enables the cells to grow and develop into tissue is —
6
30 sec
B.5.A: Cell Cycle
Q.
Checkpoints occur between the stages of the cell cycle. If a cell does not meet certain criteria at the end of a stage, it will not move to the next stage. Which of these occurs just before the cell enters the G2 stage of the cell cycle?
7
30 sec
B.5.A: Cell Cycle
Q.
Telophase is a stage of a cellular process that begins after the chromosomes have moved to opposite poles of the cell. During which cellular process does telophase occur?
8
30 sec
B.5.A: Cell Cycle
Q.
A photomicrograph of onion root tip cells during mitosis is shown below. Which phase of mitosis is occurring in the cell indicated by the arrow?
9
30 sec
B.5.A: Cell Cycle
Q.
Which of these must occur during S phase of the cell cycle so that two daughter cells can be produced during M phase?
10
30 sec
B.5.A: Cell Cycle
Q.
The activities in the cell cycle occur during specific phases. In which phase of the cell cycle is DNA replicated?
11
60 sec
B.5.A: Cell Cycle
Q.
This model of the cell cycle includes two arrows that each represent a process in the cycle. What do the two arrows represent?
