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A cancer cell divides rapidly and never dies. Which of the following would expl…

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Wize University Biology Textbook > DNA Replication & Repair

Telomerase

3 Activities

Wize University Biology Textbook > The Cell Cycle

Control of Cell Cycle

5 Activities

A cancer cell divides rapidly and never dies. Which of the following would explain the immortality of the cancer cell?
More Telomerase Questions:
DNA Replication
Which of the following proteins can extend the 5' end of a DNA strand?
1. DNA polymerase III
2. Ligase
Practice: Meiosis (Telomeres)
A hedgehog has a diploid number of 48 chromosomes. How many telomeres would you find in a a hegdehog gamete at the beginning of telophase II?
Which of the following functions as an RNA-protein complex?
Ribosomes
snRNPs
DNA Replication
Which of the following proteins can extend the 5' end of a DNA strand?
1. DNA polymerase III
2. Ligase
Telomeres
A human cell as 23 pairs of chromosomes. What is the total number of telomeres found at prophase of mitosis?
If you block the activity of DNA polymerase III, which of the following would be affected?
The ends of chromosomes are elongated by telomerase. Which of the following proteins is also involved in ensuring the inheritance of sameness at the ends of chromosomes?
i. DNA polymerase III
ii. Primase
Which of the following would not be classified as a phosphodiesterase?
i. Primase
ii. Topoisomerase
A flowering plant has 20 pairs of chromosomes. How many telomeres would a gametophyte somatic cell have at prophase of mitosis?
From Term Test 2 Prep: What does the process of non-homologous end joining accomplish?
Which of the following statements is TRUE regarding telomeres?
They get shorter with each replication cycle in somatic cells
Their length is maintained in all cells by the enzyme telomerase
More Control of Cell Cycle Questions:
What would happen if Rho production was inhibited?
You take readings of protein concentrations from a cell and record them in a table. What phase of the cell cycle is the cell in?
APC - 10mM
Cdc25 - 50mM
Which stage-shift requires polyubiquination of regulatory cyclin-CDK1 protein?
To move from G+ phase to S phase, Cyclin-CDK2 must....
A mutation in a bacterial cell causes the cell to have nonfunctional CDK1s What would be the result?
Cyclin regulation of the cell cycle is a form of _________ (long term or short term) cell signaling. We know this because ....
(fill in the blank and finish this sentence)
What would happen if S-Cdk (normally at high levels during S phase) was present during mitosis initiation but M-Cdk was not?
How many checkpoints are there in the cell cycle?
Which of the following scenarios would trigger programmed cell death or apoptosis?
Which cyclin corresponds to the graph region labelled (2)?
Which of the following are negative regulators of cell cycle? Select all that apply
Which of the following describes the function of p53 in regulation cell cycle?
1. p53 activates transcription of p21 which inhibits G1-S Cdk activation
2. DNA damage activates p53
Which of the following results in arrest of the cell cycle?
Propose an imaging technique that you could use to monitor the progression of a cell through the cell cycle.
How many of the following correspond to cell cycle positive regulators?
p53
Rb
Which of the following are negative regulators of cell division? Select all that apply.
At the end of the cell cycle, a cell is found to have an extra chromosome 3. Which cell cycle checkpoint did this cell miss?
Cyclins and cyclin-dependent kinases (CDKs) are required to push cells from one phase of the cell cycle to another. How do they do this?
At the end of the cell cycle a cell is found to have an extra chromosome 3. Which cell cycle checkpoint did this cell miss?
A cancer cell divides rapidly and never dies. Which of the following would explain the immortality of the cancer cell?
At the end of the cell cycle a cell is found to have an extra chromosome 3. Which cell
cycle checkpoint did this cell miss?
A cell has a mutation that results in higher expression of the gene encoding p21. What would happen to the cell?
Propose an imaging technique that you could use to monitor the progression of a cell through the cell cycle.