Q: Can you think of any reasons why cells are programmed to commit suicide (apoptosis)?
A: Apoptosis is a process of cell death, programmed in cells of multi cellular organisms. The cell…
Q: Describe what happens to the G1 cell cycle check point of a skin cell that is stimulated to divide…
A: Transformation of cells from one phase of the cell cycle to another is controlled by some external…
Q: According to the reading "Pallidin and the Spread of Cancer," the protein encoded by the pallidin…
A: According to the reading "Palladin and the spread of cancer" , Palladin contributes to the invasive…
Q: Based on the model of eukaryotic cell cycle regulation shown in the figure, which of the following…
A: Cell cycle is highly regulated process in which a cell divides into two daughter cells . Mitosis is…
Q: rms of the cell cycle, what would happen if there was a defect in the Rb prote made it unable to…
A: Rb protein is a tumor suppressor protein that is it suppresses the tumor from growing. Hence Rb…
Q: During M phase of the cell cycle, how M-Cdk can trigger cohesin dissociation?
A: Many different Cyclin-Cdk complexes acts as a molecular switch and thus, triggers the events of…
Q: Which of the following is the primary method by which cyclin proteins are regulated to influence…
A: This question is based on the functioning of cell cycle and cell check points.
Q: Review Figure 12.16 on cell cycle control. Would you expect MPF (maturation-promoting factor)…
A: Maturation promoting factor: - MPF is the cyclin-Cdk complex which is elicited first in frog's egg.…
Q: Which of the following statements is a lie? Select one: a. If damaged DNA is detected during the…
A: A cell cycle is a sequence of events that occur in a cell as it divides and expands. After that, the…
Q: Which cell structure is present during plant cell division but not animal cell division? a.…
A: The final step of the cell cycle is the process of cytokinesis that involves the division of the…
Q: Q. Cyclins and CDK(inase) complexes regulate the cell cycle. Which of the following statements is…
A: CDKs do not activate Cyclins and Cyclins activate CDKs. so options C and D are false.
Q: Q) During M-phase of cell cycle, active M-Cdk phosphorylates several target proteins in order to…
A: In biology, the growth and development of an organism are maintained by the process of cell…
Q: What cellular mechanism(s) ensure that passage through the cell cycle is unidirectional and…
A: Cell division is the cycle by which a parent cell isolates into at least two girl cells. Cell…
Q: Describe kinases and cyclins. How do they interact to cause cells to move through the cell cycle?
A: Cell division can be defined as the process inside the body by which the cell divides and forms two…
Q: What is a checkpoint?
A: A stage in the cell cycle of eukaryotes where the cell examines external and internal cues and…
Q: What determines the conformation of Mediator? TAND 1 O TAFS 6 and 9 interactions with transactivator…
A: Introduction In All Eukaryotes, Mediator Is A Multiprotein Complex That Acts As A Transcriptional…
Q: controlling the cell cycle. Earlier researchers had four om frog eggs (Xenopus) contained all the…
A: The Xenopus amphibian genus embryos develop outside of the body they'll simply be surgically…
Q: Suppose cells in an experiment had been labeled with green fluorescent tubulin. At the onset of…
A: As the cell progresses through anaphase B, the bleached spots or the microtubules closer to the…
Q: Why is it advantageous for p53 to be activated by factorssuch as ER stress, UV light, and hypoxia…
A: The p53 is known as tumor protein formed from the TP53 gene. The protein acts as a tumor suppressor…
Q: Tension is the signal at the spindle assembly checkpoint. What is a consequence of that tension?
A: Chromosomes make attachment with the spindle fibers by a process known as search and capture in…
Q: Discuss about The spindle position checkpoint pathway inbudding yeast.
A: Yeast is a solitary cell living being, called Saccharomyces cerevisiae, which needs food, warmth,…
Q: controlling the cell cycle. Earlier researchers had found that extra om frog eggs (Xenopus)…
A: Xenopus may be a genus of African frogs that are normally referred to as the African clawed frogs. 2…
Q: Which of the following events destabilize microtubules at the kinetochore? O Preventing Ndc80…
A: A chromosome has two microtubules arising from its kinetochore. In the anaphase, the kinetochore…
Q: Is all DNA replicated? Is all DNA damaged repaired? Are all ncludes mitosis, plus interphase which s…
A: Cell cycle is a complex cycle which consists of three phases and all the phases are in a proper…
Q: Which type(s) of microtubules continue lengthening after the spindle assembly checkpoint? (Select…
A: Kinetochore
Q: Explain how any other target the APC causes cells to progress through the cell cycle
A: APC also known as Anaphase-promoting complex which is defined as one of the ubiquitin-ligases, which…
Q: If a cell fails the Spindle Checkpoint, at which stage of the cycle would the cell arrest?
A: Cell cycle: It is a phages of events that a cell passes until it reproduces its replica. Usually…
Q: You are studying three proteins that you think are important Yor progression through the cell cycle.…
A: The proteins involved in cell cycle progression are cyclin dependant kinases (cdks) and cyclins.…
Q: Which of the following is not an internal or external factor that controls cell division? a…
A: Cell division is a highly controlled process that is under tight regulation of both external and…
Q: Explain the action of cyclin-dependent kinases inregulation of the cell cycle.
A: A cell cycle or cell division cycle involves a series of events that takes place in a cell as it…
Q: If the mitotic spindle does not correctly attach to chromosome kinetochores, the spindle assembly…
A: Cell cycle is the process by which cell cell grows in size and divides into daughter cells Types of…
Q: How are cyclin dependent kinase used in the cell cycle
A: A number of genes are implicated in cell proliferation and differentiation. For instance, Human…
Q: What cellular mechanism(s) ensure that passage through the cell cycle is unidirectional and…
A: The passage through which a cell cycle is brought is considered as unidirectional as well as…
Q: Explain the concept of loss of heterozygosity (LOH). Why do most cancer cells exhibit LOH of one or…
A: The loss or inactivation of a normal allele in a normal or somatic cell is a requirement for cancer…
Q: Apoptosis can be assayed in several ways. Which of the following is NOT correct? O Antibodies that…
A: Apoptosis is a process of cell death occurring in multicellular organisms which is used to remove…
Q: 1.Colchicine is a type of drug that inhibits the microtubule formation during the cell division.…
A: Colchicine ,is an alkaloid which is extracted from the Autumn crocus tree. It is a drug which mainly…
Q: The cell cycle contains a series of events that control the division of cells. It is controlled by…
A: Introduction: A cell cycle is a series of events that takes place in a cell as it grows and divides.…
Q: Consider the nature of cell signaling pathway outcomes. Which of the following is a benign mutation…
A: The correct option is C Results in increased p53 Activity. explanation In a normal cell there are…
Q: The cell cycle contains a series of events that control the division of cells. It is controlled by…
A: A cell cycle is a series of events that takes place in a cell as it grows and divides. It consists…
Q: Describe at least two Cdk regulation check points during the cell cycle, Describe how that Step is…
A: cell cycle is a series of events that takes place in a cell as it grows and divides. A cell spends…
Q: Which of the following is able to phosphorylate target proteins and facilitate progress through the…
A: The cell cycle is a phenomenon of cell reproduction in which daughter cells are formed. In the cell…
Q: When the DNA of a human cell becomes damaged, the p53 geneis activated. What is the general function…
A: p53 gene: Tumor protein p53 gene also p53 is a protein encoded by homologous genes in various…
Q: hat are cyclins and cyclin-dependent kinases for? Describe how do these factors affect cell…
A: A cell is a basic membrane-bound unit that is frequently referred to as the basic building blocks of…
Q: A checkpoint in the cell is a blank point blank and go signals can regulate the cell cycle?
A: A cell is the basic structural, functional, and biological unit of all known organisms. A cell is…
Q: Match the process with the correct phase of the cell cycle (G1, S, G2, M). If the process occurs in…
A: Cell cycle is a complex process with Many steps controlled by enzymes and various factors such as…
Q: During spindle assembly checkpoint, what does separase degrade? Also what does APC/C trigger the…
A: The regulation of segregation of chromosomes in both mitosis and meiosis is done at spindle…
Q: Explain Cyclin-dependent kinases (CDKs) control the cell cycle by phosphorylating other proteins?
A: Cyclin-dependent kinases (CDKs) are the families of protein kinases that play a vital role in the…
Q: During M phase of the cell cycle, how Mad2 triggers mitotic checkpoint to delay metaphase to…
A: MAD is a short form of mitotic arrest deficient 2 protein. It arrest metaphase seconf phase…
Q: 3. Describe how cyclins and cyclin-dependent kinases are related. How do these molecules help…
A: As per our company guideline we are supposed to answer only first queation or first 3 sub parts of…
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:
in term of signal transduction how cell cycle/division is controlled??
((while you are answerig plz write the refrence.))
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- During M phase of the cell cycle, how M-Cdk can trigger cohesin dissociation?1.Colchicine is a type of drug that inhibits the microtubule formation during the cell division. Let’s say that the onion root tip (a place where most of the plant’s cells divide) was submerge in colchicine solution. a. How do you think will be the cell’s respond? Will it continue its cell division? Why or why not? b. Let’s say that the cells in onion root tip treated with colchicine were not halted at spindle checkpoint. What do you think will happen during the division?What cellular mechanism(s) ensure that passage through the cell cycle is unidirectional and irreversible? What mo-lecular machinery underlies these mechanism(s)?
- Explain Cyclin-dependent kinases (CDKs) control the cell cycle by phosphorylating other proteins?During M phase of the cell cycle, how M-Cdk can trigger cohesin dissociation as well as Mad2 triggers mitotic checkpoint to delay metaphase to anaphase transition?"Agent V" is the name of an anticancer (chemotherapy) drug. This drug works against cancer cells by inhibiting the formation of microtubules in sensitive cells. Consider a cell that is sensitive to agent V (in other words, agent V is effective at stopping growth of this cell). Based on this information, agent V would cause the cell to be frozen at which of the major cell cycle checkpoints (G1, G2 or M checkpoint)? Explain
- Figure 28.11 depicts the eukaryotic cell cycle. Many cell types “exit� the cell cycle and don’t divide for prolonged periods, a state termedG0; some, for example neurons, never divide again. a. In what stage of the cell cycle do you suppose a cell might be when it exits the cell cycle and enters G0? b. The cell cycle is controlled by checkpoints, cyclins, and CDKs. Describe how biochemical events involving cyclins and CDKs might control passage of a dividing cell through the cell cycle.What from mitosis is triggered by mitotic CDK inactivationmainly brought about by mitotic cyclin degradation.Cytokinesis in plant cells is different than cytokinesis in animal cells. a) Explain why it has to be different, andb) briefly describe the processes in the two different cell types.
- Explain the concept of loss of heterozygosity (LOH). Why do most cancer cells exhibit LOH of one or more genes? How does failure of the spindle assembly checkpoint lead to loss of heterozygosity?In a dividing cell, the duplicated sets of chromosomes move along microtubules to opposite ends of the cell. How would you use an inhibitor to show that microtubules are essential for chromosome separation? What control treatment(s) would you use? What kind of cell junctions would you expect to find, and why, in a small animal where a chemical signal passes rapidly through cells to go from the head to the tail?Progression through the cell cycle is dependent on both extra- and intracellular conditions. Consider the following conditions. Indicate which checkpoint (s) responds to that condition.a. The cell is large enough to divide.b. The DNA is completely copied during S phase.c. The cell is receiving positive cues from neighbors.d. The DNA is damaged.e. The cell has enough energy reserves to divide.f. Are all the sister chromatids correctly attached to spindle microtubules?