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Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
which of the folowing will remove damaged cellular compnents?
- post translational modification
- apoptosis
- hydroylsis
- ubiquitination
- autophagy
Step by step
Solved in 3 steps
- which of the following can target specific proteins for degredation. - apoptosis - hydrolysis - post translational modificaiton - autophagy - ubiquitinationFrom a virus’s perspective, why would it be beneficial to prevent apoptosis?Which of the following is not a part of apoptosis?a. cell shrinkageb. DNA fragmentationc. the manufacture of cellsd. activation of cellular enzymes
- Which of the following types of mutations would be most likely to cause cells to undergo apoptosis (programmed cell death)? One that increases the affinity of p21 for Cdks One that decreases the affinity of Rb for the transcription factor E2F One that decreases the ability of p53 to bind to DNA One that causes p53 to be constitutively phosphorylatedWhich of the following must occur for programmed cell death (apoptosis): 1. p53 must be stabilized 2. M-Cdk must be active 3. Caspases must be inactivated 4. There must be local inflammationA cell begins to undergo apoptosis due to stress. Which of the following are true about this cell? (select all that apply) The cell can exit apoptosis if the stressful factor is removed The cell has high levels of p53. The cell's DNA will inevitably degrade The cell may undergo mitosis before completing apoptosis
- “Disruption in the pathway of apoptosis can lead to different diseases”- Briefly explain the statement at your own words?Which cell component forms pinocytic vesicles? a) cell surface membraneb) endoplasmic reticulumc) lysosomed) nucleoluse) ribosomeWhich of the following proteins would least likely promote arrest of cell division or apoptosis? Select one: a. p21 b. superoxide c. retinoblastoma d. p53 e. cyclin
- Apoptosis can occur in a cell when the cell is ________________. a. damaged b. no longer needed c. infected by a virus d. all of the aboveWhich of these events do you think is likely to promote tumorigenesis in affected cells? Group of answer choices DNA methylation of the promoter region of a tumor suppressor gene Hypermethylation of transcription factors that antagonize Wntsignaling Open chromatin in the region of of DNA harboring an activating mutation of beta-catenin All of theseWhat is a primary function of tumor suppressor genes?a. stop all cells from dividingb. stop certain cells from dividingc. help oncogenes produce oncoproteinsd. allow the cell to skip certain phases of the cellcycle