Most cells in the squamous epithelium are in cell cycle arrest – they are in the...
Most cells in the squamous epithelium are in cell cycle arrest – they are in the process of differentiating and are no longer dividing. Explain in 2 sentences why this is a problem for HPV replication and how is it overcome?
Homework Answers
- Once they stop dividing and become differentiated,forming the protective outer layers.HPV infects and replicates within the basal epithelial cells .HPV gene expression depends on host cell factors ,which vary depending on the level of differentiation of the host cells.
- Early genes are expressed in rrelatively undifferentiated cells and late genes are expressed in more differentiated cells closer to the surface of the epithelium spatial and temporal gene expression.
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Most cells in the squamous epithelium are in cell cycle arrest –
they are in the...
Questions: 1.) Describe the cell cycle for plant cells. 2.) Describe the cell cycle for animal...
Questions: 1.) Describe the cell cycle for plant cells. 2.) Describe the cell cycle for animal cells. 3.) Describe the mitotic process 4.) Calculate the mitotic index for onion root tip cells. s spend in mitosis. 5.) Calculate the time that onion root tips cell
1. For cells to replicate properly, they must duplicate their genome. However, this must be done...
1. For cells to replicate properly, they must duplicate their genome. However, this must be done only once per cell cycle. Answer the following questions in detail. A. During which cell cycle phase, does DNA undergo replication? B. Which cyclin must accumulate within the cell to trigger DNA replication? C. Explain the process by which cells replicate their DNA only once per cycle. D. What consequences would there be if more than one round of replication occurred per cell cycle?...
9. If you had to pick a type of gene that regulates cell cycle and it...
9. If you had to pick a type of gene that regulates cell cycle and it becomes mutated thus no longer functions in cell cycle regulation as it was supposed. What gene or gene family would you pick and why did you make this selection? 10. Briefly explain how bacteria reproduce to make more of themselves. Do you think that their process of cell reproduction will produce a genetically identical cell or is this process designed to produce genetic variants...
1 You are a studying the progression of cells through the cell cycle. You are particularly...
1 You are a studying the progression of cells through the cell cycle. You are particularly interested in the cyclins E and A, both of which contribute sequentially to the same cell cycle transition. In this case one cyclin initiates the transition and the other completes the process. In these images you see cell extracts from Hela Cells. A) shows the levels of various proteins, while B) shows the amount of DNA in the cells, more DNA shifts this graph...
Explain how the abnormal cell division of cancerous cells escapes normal cell cycle controls.
Explain how the abnormal cell division of cancerous cells escapes normal cell cycle controls.
5. Describe the events that happen during each of the listed phases of the cell cycle....
5. Describe the events that happen during each of the listed phases of the cell cycle. Which phase do cells spend the majority of their life cycle within? (3 points) a. Gap 1 DNA damace PioMaloxiMnoitstugano : suivolos ons is both b. S Phase Incomdete replication or DNA daware obson UM DNA is replicated during S phase nowd on ooted C. Gap 2 DNA damage nonoorin on your by do Olho no ob d. Gap 0 (hint: look in cancer...
C ULPU QUESTION 2 Match the following phases of the cell life cycle to answer the...
C ULPU QUESTION 2 Match the following phases of the cell life cycle to answer the questions the cytoplasm finishes dividing, forming two cells A. telophase B.anaphase C.metaphase D. interphase E. prophase The chromatin condenses into chromosomes the nuclear membrane is degraded cell growth and DNA replication occur . dyads separate into monads the nuclear membrane is re-synthesized the dyads align along the center of the cell centrosomes start to move apart chromosomes elongate into chromatin
Cancer cells often lack normal DNA damage response and cell-cycle control mechanisms. Why does this make...
Cancer cells often lack normal DNA damage response and cell-cycle control mechanisms. Why does this make them more susceptible to DNA-damaging chemotherapies? O Cancer cells will arrest in the cycle and will not grow further O Cancer cells with activating mutations in Ras will amplify the damage through the Ras signaling pathway Cancer cells might ignore the normal mechanisms that halt the cell cycle in response to damage, and subsequent division with damage leads to death, O Cancer cells have...
please help me with these quetions DNA replication is checked G1 for accuracy Cells no longer divide GO DNA is cop...
please help me with these quetions
DNA replication is checked G1 for accuracy Cells no longer divide GO DNA is copied or replicated Cells synthesize proteins G1 needed for the process of mitosis Cell doing its normal 'job GO 30 Crossing over between non Meiosis sister chromosomes Spindle formation complete Prophase I Nuclear membrane reforms Metaphase Chromosomes line up at Metaphase midline Spindle fibers shorten Telophase 13. Cell |Туре Normal Mitotic Index C A E 3% 5% 8% 12% 15%...
Most cancer medications kill rapidly dividing cells, such as those in tumors. Two common side effects...
Most cancer medications kill rapidly dividing cells, such as those in tumors. Two common side effects of cancer medications are hair loss and digestive tract upsets. Make a hypothesis about why these two side effects are seen in people taking cancer medications, and explain your reasoning. (Hint: The cells on your scalp and those that line your digestive tract are both part of surface tissues called epithelia. Your skin is also an epithelium. Have you ever noticed how you constantly...
Questions: 1.) Describe the cell cycle for plant cells. 2.) Describe the cell cycle for animal cells. 3.) Describe the mitotic process 4.) Calculate the mitotic index for onion root tip cells. s spend in mitosis. 5.) Calculate the time that onion root tips cell
9. If you had to pick a type of gene that regulates cell cycle and it becomes mutated thus no longer functions in cell cycle regulation as it was supposed. What gene or gene family would you pick and why did you make this selection? 10. Briefly explain how bacteria reproduce to make more of themselves. Do you think that their process of cell reproduction will produce a genetically identical cell or is this process designed to produce genetic variants...
1 You are a studying the progression of cells through the cell cycle. You are particularly interested in the cyclins E and A, both of which contribute sequentially to the same cell cycle transition. In this case one cyclin initiates the transition and the other completes the process. In these images you see cell extracts from Hela Cells. A) shows the levels of various proteins, while B) shows the amount of DNA in the cells, more DNA shifts this graph...
5. Describe the events that happen during each of the listed phases of the cell cycle. Which phase do cells spend the majority of their life cycle within? (3 points) a. Gap 1 DNA damace PioMaloxiMnoitstugano : suivolos ons is both b. S Phase Incomdete replication or DNA daware obson UM DNA is replicated during S phase nowd on ooted C. Gap 2 DNA damage nonoorin on your by do Olho no ob d. Gap 0 (hint: look in cancer...
C ULPU QUESTION 2 Match the following phases of the cell life cycle to answer the questions the cytoplasm finishes dividing, forming two cells A. telophase B.anaphase C.metaphase D. interphase E. prophase The chromatin condenses into chromosomes the nuclear membrane is degraded cell growth and DNA replication occur . dyads separate into monads the nuclear membrane is re-synthesized the dyads align along the center of the cell centrosomes start to move apart chromosomes elongate into chromatin
Cancer cells often lack normal DNA damage response and cell-cycle control mechanisms. Why does this make them more susceptible to DNA-damaging chemotherapies? O Cancer cells will arrest in the cycle and will not grow further O Cancer cells with activating mutations in Ras will amplify the damage through the Ras signaling pathway Cancer cells might ignore the normal mechanisms that halt the cell cycle in response to damage, and subsequent division with damage leads to death, O Cancer cells have...
please help me with these quetions
DNA replication is checked G1 for accuracy Cells no longer divide GO DNA is copied or replicated Cells synthesize proteins G1 needed for the process of mitosis Cell doing its normal 'job GO 30 Crossing over between non Meiosis sister chromosomes Spindle formation complete Prophase I Nuclear membrane reforms Metaphase Chromosomes line up at Metaphase midline Spindle fibers shorten Telophase 13. Cell |Туре Normal Mitotic Index C A E 3% 5% 8% 12% 15%...
Most cancer medications kill rapidly dividing cells, such as those in tumors. Two common side effects of cancer medications are hair loss and digestive tract upsets. Make a hypothesis about why these two side effects are seen in people taking cancer medications, and explain your reasoning. (Hint: The cells on your scalp and those that line your digestive tract are both part of surface tissues called epithelia. Your skin is also an epithelium. Have you ever noticed how you constantly...
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