Homework Answers
In eukaryotic cell cycle, metaphase is a stage of mitosis in which chromosomes align in the equator of the cell before being separated into each of the two daughter cells. This is a very short phase, about 4% of cell cycle.
The checkpoint during mitosis is also known as the M Checkpoint. During this checkpoint, the cell checks two parameters
- all the sister chromatids are correctly attached to the spindle microtubules
- alligned properly at the metaphase plate
As the separation of sister chromatids during anaphase is an irreversible step, the cell cycle will not proceed until all the chromosomes are located at the opposite poles of cell.
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10. What does the cell check to make sure has happened at the checkpoint during metaphase?
The picture below represents a cell during metaphase of mitosis. The chromosomes are represented in red...
The picture below represents a cell during metaphase of mitosis. The chromosomes are represented in red and the mitotic spindle is represented in green. BO ! A. The cell is stuck in metaphase because a checkpoint has been activated. Why was the checkpoint triggered? B. What could have happened to this cell without this checkpoint? There are three main checkpoints during the cell cycle. One checkpoint occurs at the end of G1 phase and involves the protein p53. If p53...
Does meiosis occur in the cell cycle? i am confused because if the cell cycle is...
Does meiosis occur in the cell cycle? i am confused because if the
cell cycle is represented as the image below, then when/where does
meiosis occur?
The Cell Cycle Interphase Synthesis period when the DNA is replicated and chromosome Gap 2 is duplicated period of cell growth, prepares for mitosis Gap 1 - period of cell growth, normal metabolism, duplication of organelles metaphase prophase telophase anaphase Checkpoint Mitosis Checkpoint Final checkpoint during mitosis 2 new cells produced and each can...
1. Damaged DNA is discovered during the G1 checkpoint. How does p53 react, and what are...
1. Damaged DNA is discovered during the G1 checkpoint. How does p53 react, and what are the possible results? 2. If S phase checkpoints detect nucleotides deficit, what happens to the dividing cell and the cell cycle? 3. What three conditions may be detected during the G2 checkpoints, and what are the two possible results if there is inadequate DNA or spindle fibers? 4. What two conditions are checked during the metaphase checkpoint? What happens if the cell “passes” the...
There are 3 checkpoints in cell cycle? What docs each checkpoint check? Do the following molecules...
There are 3 checkpoints in cell cycle? What docs each checkpoint check? Do the following molecules belong to Tumor suppressor or Proto-Oncogene? What's their normal function before mutation? Ras p53 Retinoblastoma (Rb) HER/Neu (Human Epidermal Growth Factor Receptor)- Chemotherapy drug is basically a toxin, aiming to kill cancer cells. However, it also kill normal cells nom could you design two targets and explain who these drug work?'
Q.For a cell with 3 pairs of chromosomes make a diagram of the events during mitosis....
Q.For a cell with 3 pairs of chromosomes make a diagram of the events during mitosis. There should be 5 parts to your diagram: prophase, prometaphase, metaphase, anaphase and telophase. Remember to label the important parts in each phase.
1- Identify the name of the crossing over location 2- What happens during metaphase I? 3-...
1- Identify the name of the crossing over location 2- What happens during metaphase I? 3- How does independent assortment/alignment affect the metaphase I appearance? 4- What happens during anaphase I? 5- What happens during telophase I? 6- What is interkinesis?
question: What happened to Jesse Gelsinger? How could it have been avoided? What role does greed...
question: What happened to Jesse Gelsinger? How could it have been avoided? What role does greed play in these cases? this is a case for biomedical ethics. Can you please make sure the answer to be at least 12 sentence thank you!!!
What has happened economically in China during the past twenty-five years?
What has happened economically in China during the past twenty-five years?
The average human cell nucleus has 3.6 picograms (10-12 grams) of DNA. What is the mass...
The average human cell nucleus has 3.6 picograms (10-12 grams) of DNA. What is the mass of DNA (in picograms) in a nucleus in metaphase I?
Question 1: The cell cycle has these stages
Question 1: The cell cycle has these stages A. GI, S, G2, M B. GI, S, BI, CL C. GI, S, G2, CI D. S, G2, NI, MI Question 2: During interphase, the following occurs A. Sister chromatids separate. B. Chromosome duplication takes place. C. Chromatin becomes tightly coiled. D. The mitotic spindle forms. Question 3: The correct sequence of stages of mitosis is A. prophase, metaphase, anaphase, telophase B. telophase, prophase, interphase, anaphase, metaphase C. interphase, anaphase, prophase, metaphase, telophase B. metaphase, prophase, anaphase, telophase Question 4: Human cells contain 23 pairs of chromosomes A....
The picture below represents a cell during metaphase of mitosis. The chromosomes are represented in red and the mitotic spindle is represented in green. BO ! A. The cell is stuck in metaphase because a checkpoint has been activated. Why was the checkpoint triggered? B. What could have happened to this cell without this checkpoint? There are three main checkpoints during the cell cycle. One checkpoint occurs at the end of G1 phase and involves the protein p53. If p53...
Does meiosis occur in the cell cycle? i am confused because if the
cell cycle is represented as the image below, then when/where does
meiosis occur?
The Cell Cycle Interphase Synthesis period when the DNA is replicated and chromosome Gap 2 is duplicated period of cell growth, prepares for mitosis Gap 1 - period of cell growth, normal metabolism, duplication of organelles metaphase prophase telophase anaphase Checkpoint Mitosis Checkpoint Final checkpoint during mitosis 2 new cells produced and each can...
There are 3 checkpoints in cell cycle? What docs each checkpoint check? Do the following molecules belong to Tumor suppressor or Proto-Oncogene? What's their normal function before mutation? Ras p53 Retinoblastoma (Rb) HER/Neu (Human Epidermal Growth Factor Receptor)- Chemotherapy drug is basically a toxin, aiming to kill cancer cells. However, it also kill normal cells nom could you design two targets and explain who these drug work?'
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