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what do you mean by checkpoints. The cell cycle happens to create more cells for the body. It also does it so it does not get really big becasue if a cell gets really big then it won't be alble to get all the nutrients in as fast as it needs it and all the waste out. It also helps to prevent from DNA overload.
The prosses or stages go in this order:
1. Interphase-
- G1: it grows and synthesizes proteins and organelles.
- S: Repicates and synthesizes DNA
- G2: replication of organelles needed for division
2. Mitosis
- Prophase: chromatin condenses into chromosomes. cetrioles separate and spindle begins to form. nuclear envelope will form.
- Metaphase: chromosomes line up acroll the center of the cell. each chromosome is connected to a spindle fober at its centrome.
- Anaphase: the sister chrmatids separate into indevidual chromosomes and are moved apart.
- Telophase: chromosomes gather at opposite ends of the cell and lose theur distinct shapes. 2 new nuclear envelopes will form.
3. Cytokenesis - the cytoplasm pinches in half. cytoplasm splits. each daughter cell has an identical set of duplicate chromosomes.
I am studing this right now but instead of typing what I know that maybe confusing I got this out of my Biology book. I hoope this helps.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoTo make sure the cell properly replicates itself.
Wiki User
∙ 13y agoFeedback signals from the cell can trigger the next phase of the cell cycle
i got this from Prentice Hall Biology textbook Pearson education
Wiki User
∙ 10y agoregulate growth
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What is the importance of feedback signals at key checkpoints within the cell cycle?
to delay or trigger the next phase of the cycle.
How many checkpoints are there during the cell cycle?
6
What directs the sequential events of the cell cycle?
the sequence of the cell cycle: interphase mitosis prophase metaphase anaphase telophase, describe and defined .
During which stage is DNA replication evaluated to see if the cell is ready to move on with mitosis?
The cell cycle is controlled by three internal checkpoints that evaluate the cell to the next stage in the cycle can be halted until conditions are favorable.
What is the protein that regulates cell cycle?
The proteins that participate in the functioning of the checkpoints for cell cycle control are cyclins. The cell cycle controls cyclin dependent kinases as well.
What is the importance of feedback signals at key checkpoints within the cell cycle?
to delay or trigger the next phase of the cycle.
What are check point in cell cycle?
The checkpoints in the cell cycle are points were the cell is tested for mutations. There are three checkpoints: one at the G1 stage, at the S stage, and finally at the G2 phase.
What are places in the cell cycle that control whether the cell will divide?
checkpoints
How many checkpoints are there during the cell cycle?
6
Does the cell cycle have checkpoints that act to inhibit uncontrolled cell division?
Yes they do
Why do cancer cells have a shorter cell cycle?
Because cancer cells are able to skip the cell cycle checkpoints that are in place to ensure proper cell division.
Why can exposure to radiation and certain chemicals uncontrolled cell division?
They can disrupt different checkpoints in the mitotic cell cycle
When there are errors in DNA what activity do checkpoints inhibit?
They inhibit further progression through the cell cycle.
What directs the sequential events of the cell cycle?
the sequence of the cell cycle: interphase mitosis prophase metaphase anaphase telophase, describe and defined .
How are all the cell cycle checkpoints similar?
They give the go-ahead signal to progress to the next checkpoint
Is it true that the cell cycle is regulated very tightly?
The cell cycle is regulated by three checkpoints viz G1, G2 and Meta phase checkpoints. Check points help to detect DNA damage and repair it. If repair is not possible then it generate signals to destruct the cell via apoptosis. Hence the statement is true. true
During which stage is DNA replication evaluated to see if the cell is ready to move on with mitosis?
The cell cycle is controlled by three internal checkpoints that evaluate the cell to the next stage in the cycle can be halted until conditions are favorable.
