A) Which step (A,B, or C) is necessary to allow metaphase to anaphase transition?.. Mad2 АРС/С BubR1 Securin- separase B Cyclin B- Cdk1 Separase Cdk1 B) Which protein complex triggers the inactivation of maturation promoting factor? Cohesin Kinetochore Microtubules Prometaphase Metaphase Anaphase
Q: f you are growing mammalian cells in culture that are in G0, which of the following would you add to…
A: Go phase is the resting phase where cell division or growth cycle is completely arrested.
Q: Mitotic spindle microtubules connect to ________ during prometaphase. a. kinetochores b.…
A: The cell cycle is defined as a series of events that occur in the cell as it grows and divides. The…
Q: The complex of proteins that holds two chromatids together is called the... Group of answer choices…
A: Cell division is the process of division of cell into daughter cell. The cell division can take…
Q: Mad protein accumulates on the kinetochores that are not attached to mitotic spindle during…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: ow many sister chromatids, chromosomes and homologous chromosome pairs are in each human eukaryotic…
A: Mitosis is further subdivided in to Prophase, Metaphase, Anaphase and Telophase There are four…
Q: Fill in the table below with information regarding the cell cycle. Cell cycle stage Main events…
A: Cells perform regeneration or reproduction by hereditarily indistinguishable duplicates of…
Q: The function of the M-phase checkpoint is to check that the microtubules of the mitotic spindle have…
A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…
Q: In the eukaryotic nucleus during interphase, a strand of chromatin consisting of eight conserved…
A: Interphase is the part of the cell cycle that is not followed by significant changes under the…
Q: What would happen if the SRY gene was moved to chromsome 2, adjacent to the LCT gene? Would SRY…
A: The SRY gene is present on the Y chromosome. Therefore, it is only present in males. It is…
Q: Figure 6.4 Which of the following is the correct order of events in mitosis?a. Sister chromatids…
A: Introduction Cytology refers to the study of cell such as cell morphology, physiology etc. As we…
Q: Match the illustration to the name of the stage. Early Interphase Late Interphase Prophase I…
A: Early Interphase ---- picture B Late Interphase ----- picture k Prophase I -------- picture A…
Q: Choose the item in column 2 that best matches each item in column 1.…
A: Cdk - cyclin dependent kinases is one. APC - anaphase promoting Ced mutants - cell death mutants…
Q: One change observed at the centrosomes early in mitosis is an increase in the number of…
A: polar orientation of microtubules. associate with other proteins to form gamma tubulin ring complex…
Q: Explain why we can say that M-phase of the cell-cycle is triggered by a positive feedback loop.…
A: Feedback loops work to regulate the sequence of events by giving feedbacks. That is in case some…
Q: Taxol is an anticancer drug extracted from the Pacific yew tree. In animal cells, Taxol disrupts…
A: Taxol It is obtained from the bark of Pacific yew tree. It targets the rapidly growing cancer cells…
Q: How can defects in the regulation of cell-cyle checkpoints would affect cells and explain how these…
A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…
Q: Match the term to its definition. v Centromere A. A specialized complex of proteins that coalesces…
A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…
Q: A-Mitosis 1. Draw and label the chromosomes at metaphase. Identify the types of chromosomes in the…
A: M - phase is most dramatic period of the cell cycle, involving a major recognization of virtually…
Q: Chromosomes that are preparing to align at the metaphase plate are repelled from the poles by the…
A: The cell division is highly controlled mechanism;-
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: The sister chromatids detach from one another and become visibly separated chromosomes during a.…
A: Sister chromatids are two identical copies of same chromosome which are formed through the process…
Q: Independent assortment occurs mainly during which phase? Prophase I Metaphase I…
A: The law of Independent assortment was proposed by Mendel. According to this law, alleles of two…
Q: In metaphase, kinetochore microtubules have... tubulin heterodimers added and removed at the plus…
A: A stage of mitosis in the eukaryotic cell cycle in which chromosomes are at their second-most…
Q: The process depicted in the image above is best summarized by which of the following descriptions? *…
A: Introduction Cytology refers to the study of cell such as cell morphology, physiology etc. As we…
Q: Identify which of the following statements regarding anaphase is INCORRECT: Kinetochore microtubules…
A: Cell division is an essential aspect of the cell, especially in germ cells. The cells divide through…
Q: What molecular mechanism seems to be responsible for the movement of the poles during anaphase?
A: Anaphase is a dynamic stage of the mitotic stage during which each pair of chromosomes is separated…
Q: The figure above shows a metaphase in which one chromosome is only connected to the spindle by a…
A: Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly…
Q: Describe what happens tocohesin from the beginning of prophase throughanaphase.
A: Cohesion refers to multi subunit protein complex, which brings about cohesion of sister chromatids,…
Q: Given their respective roles, why might activation of formin and myosin II be beneficial as cells…
A: When a cell is destined for division, first its nuclear content would be shared between cells. It…
Q: Are spindle fibers visible in the interphase? And, describe the appearance of spindle fiber during…
A: Spindle fibers make a protein which split the genetic constituents inside the cell. This spindle is…
Q: In eukaryotic cells, the nuclear envelope has to disappear in order to directly permit _____. A. the…
A: Mitosis in eukaryotic cells is generally divided into 4 stages - Prophase Metaphase Anaphase…
Q: a species that has a diploid number 2n = 10. Draw this cell as you would expect it to appear during…
A: * cell cycle meiosis consists of four stages Prophase Metaphase Anaphase Telophase * In prophase…
Q: Anaphase B involves the separation of spindle poles. What forces have been proposed to drive this…
A: Anaphase is the third stage, followed by metaphase that is characterized by the seperation of…
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: 1. Homologous chromosomes line up at the equator (or the middle) of the cell. Metaphase I 2. Spindle…
A: Cell division is an important process that helps to keep the cells growing in number. This enables…
Q: A) Which step (A.B, or C) is necessary to allow metaphase to anaphase transition?.. Mad2 BubR1 APC/C…
A: Chromosome separation occurs at the time of anaphase and is brought about by the dissolving of the…
Q: Fill in the table below with information regarding the cell cycle. Cell cycle stage Main events…
A: A cell cycle is a chain of events that takes place in a cell as it grows and divides. A cell spends…
Q: The figure below shows a centrosome with microtubules attached to the kinetochore. Which of the…
A: Organelles that serve as the main microtubule-organizing centers for animal cells are known as…
Q: Which types of microtubules are essential for the major events occurring during anaphase B ? A.…
A: During anaphase chromosome separate and move toward opposite poles. Anaphase divide into two phases:…
Q: Review the events associated with each stage of mitosis in addition to the preparatory stage,…
A: Mitosis is a kind of cell division wherein one cell (the mother) splits to generate genetically…
Q: Match the description to the correct phase of interphase. DNA is copied. The centrosomes…
A: The correct sequence for the match is 4) S 2) G1 1) G0 3) G2
Q: 1 2 I 3 . . (a) Identify the point in mitosis at which separase cleaves the protein complex that…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: Metaphase I [ Choose ] (Choose ] Sister chromatids line up along the center of the cell. Cytokinesis…
A: meiosis
Q: A- Mitosis 1. Draw and label the chromosomes at metaphase. Identify the types of chromosomes in the…
A: Metaphase: Chromosome number: 46 Chromosome position: Chromosome align on the equator of spindle.…
Q: What are the three types of microtubules involved in the formation of the mitotic spindle? Briefly…
A: Spindle fibers are a type of protein that splits a cell's genetic material. During both kinds of…
Q: The assembly and function of the mitotic spindle depend on numerous microtubule-dependent motor…
A: The assembly and function of the mitotic spindle depend on numerous microtubule-dependent motor…
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: During mitosis, the cohesin protein holds the sister chromatids together and is broken down by the…
A: Mitosis is the equational division in which the chromosomes number remains the same without getting…
Q: What are the functionalroles of the mitotic spindle in an animal cell? Explain how thesefunctions…
A: The isolation of the repeated chromosomes is achieved by a complex cytoskeletal structure with many…
Step by step
Solved in 2 steps
- Newly forming astral microtubules associate with dynein motor proteins, with the tail of the dynein bound to the plasma membrane. This association appears to be important in the distribution of astral microtubules to the polar regions (opposite “ends”) during spindle assembly.Now fast forward to the events of anaphase. In which phase of Anaphase (A or B) does the association between astral microtubules and membrane-bound dynein play a role? What is that role? (Your answer should incorporate information on how the directionality of dynein’s movement is involved in the process you describe.)Describe how the duplicated bacterial chromosomes are distributed into new daughter cells without the direction of the mitotic spindle.What will be the outcome if anaphase proceeded even thoughthe sister chromatids were not properly attached to theirrespective microtubules and lined up at the metaphaseplate?
- Rather surprisingly, some cellular components that we know best from our study of nuclear protein traffic also appear to be involved in the process of spindle assembly. These include Ran GEF (which, as you may recall, is bound to chromatin – an association that apparently continues even when the nuclear envelope breaks down at the onset of mitosis) and importin-β. Now think back to the process of nuclear protein import. To which form of Ran (Ran-GDP or Ran-GTP) does importin-β bind and what is the significance of that interaction with respect to the efficiency of delivery of import “cargo” to the nucleus? To which form of Ran (Ran-GDP or Ran-GTP) do exportins bind and what is the significance of that interaction with respect to the efficiency of delivery of export “cargo” to the cytoplasm?One change observed at the centrosomes early in mitosis is an increase in the number of γ-TURCcomplexes (which contain γ-tubulin.).How does the presence of γ-tubulin affect the balance between microtubule assembly & disassembly? Why might having more of it present in the centrosomal region be beneficial in the spindle assembly process?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 phase: Sister chromatids move to opposite spindle poles?Need help If the mitotic spindle does not correctly attach to chromosome kinetochores, the spindle assembly checkpoint will be activated. Select all correct outcomes for chromosomes not correctly attached to mitotic spindle A) centrosome duplication will not occur B) M cyclin will be degraded C) APC will be inhibited D) chromosomes will not segregate E) Mad2 will bind to unattached kinetochores F) mitosis will halt at metaphase/anaphase transitionDuring 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?
- Fill in the blank: At the spindle assembly checkpoint, the kinetochore senses ___________ which occurs only once microtubules are bound to both sides of the kinetochore.Are spindle fibers visible in the interphase? And, describe the appearance of spindle fiber during cytokinesis.Kinetochores control the transition from metaphase to anaphase. Why is this statement true? Question 7 options: a) Anaphase will only begin after the M checkpoint where all the kinetochores and mitotic spindle have correctly attached. b) Anaphase will only begin after the M checkpoint where all the mitotic spindle have correctly formed. c) Kinetochores bind to microtubules in monotelic attachment to the sister chromatids. d) Kinetochores bind to microtubules in syntelic attachment to the sister chromatids. e) Kinetochores will halt at the M checkpoint to weaken the mitotic spindle formation, which is the event that initiates anaphase.