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Could the cell shown above proceed past the metaphase checkpoint quizlet?

Looking for an answer to the question: Could the cell shown above proceed past the metaphase checkpoint quizlet? On this page, we have gathered for you the most accurate and comprehensive information that will fully answer the question: Could the cell shown above proceed past the metaphase checkpoint quizlet?

DNA is in its condensed form during every phase of mitosis. true, DNA is condensed during prophase, and it decondenses during telophase. So, chromosomes are in condensed form during some part of the phase of mitosis. In which phases are the condensed chromosomes or sister chromatids attached to the spindle?

right answer feedback:During prometaphase the nuclear envelope breaks down. This step is halted, arresting cells in prophase. Advancing to metaphase requires breakdown of the nuclear envelope so that mitotic spindles can attach to the chromosomes.

Consider a diploid cell where 2n = 6. During metaphase I of meiosis, as the pairs of homologous chromosomes line up on the metaphase plate, each pair may orient with its maternal or paternal homolog closer to a given pole. There are four equally probable arrangements of the homologous pairs at metaphase I.

right answer feedback:DNA must be properly replicated for a cell to pass the G2 checkpoint and enter M phase. The cell would not want to replicate damaged chromosomes.

What is checked during the metaphase checkpoint quizlet?

During the metaphase in Mitosis, the mitotic spindle checkpoint checks whether all the chromosomes are aligned at the mitotic plate.

Could the cell shown above proceed past the metaphase?

Yes; because each chromosome is attached t0 the spindle and Ihey are lined up on the midline Yes because each chromosome has sister chromatids, allowing cohesin t0 dissolve; l 06.6. Observe the cell depicted above.

What happens after metaphase checkpoint?

Spindle assembly checkpoint overview. The spindle assembly checkpoint (SAC) is an active signal produced by improperly attached kinetochores, which is conserved in all eukaryotes.

Why does colchicine affect metaphase?

The alkaloid drug, colchicine, extracted from the corm of the autumn crocus (Colchicum autumnale), arrests mitosis in metaphase by interfering with the formation of spindle fibrils, thereby retarding the division of the centromeres and preventing division of the centrioles.

In what order do events occur during mitosis Simutext?

condense DNA, dissolve nuclear envelope, separate sister chromatids, cytokinesis.

What happens at metaphase checkpoint?

During metaphase, the kinetochore microtubules pull the sister chromatids back and forth until they align along the equator of the cell, called the equatorial plane. There is an important checkpoint in the middle of mitosis, called the metaphase checkpoint, during which the cell ensures that it is ready to divide.

Would a cell that was missing the Kinetochores be able to get past the metaphase checkpoint?

The correct answer would be #1. Kinetochores are where the spindle fibers attach to during cell division to help move the chromosomes around the cell. If kinetochores are missing, then the fibers cannot attach and move it to the metaphase plate in the middle of the cell.

What would happen in mitosis to a cell given colchicine?

The most striking effect of cold and of colchicine is the arrest of mitosis when the chromosomes have reached metaphase spiralization. This arrest leads to an accumulation of cells at this stage.

What are the requirements for a cell to pass the G1 checkpoint?

In order to proceed to the next phase of interphase, the cell must pass the G1 checkpoint. In order for this to happen, cyclin proteins must be present and the proper cellular conditions must occur. If the cell passes the checkpoint it will proceed to the S phase, during which DNA replication occurs.

What happen during G1 checkpoint?

The G1 checkpoint is located at the end of G1 phase, before the transition to S phase. ... At the G1 checkpoint, cells decide whether or not to proceed with division based on factors such as: Cell size. Nutrients.

What is different about metaphase I from metaphase in mitosis?

The difference is that in Metaphase-1 of meiosis the chromosome put together in two pairwise and therefore cross over takes place at the same time as in mitosis the chromosome organize in particular pair and no cross over takes place.

How does a cell know when to proceed to the next stage of the cell cycle?

How Do Cells Monitor Their Progress through the Cell Cycle? In order to move from one phase of its life cycle to the next, a cell must pass through numerous checkpoints. At each checkpoint, specialized proteins determine whether the necessary conditions exist. If so, the cell is free to enter the next phase.

What happens after M phase?

Cell division occurs during M phase, which consists of nuclear division (mitosis) followed by cytoplasmic division (cytokinesis). The DNA is replicated in the preceding S phase; the two copies of each replicated chromosome (called sister chromatids) remain glued together by cohesins.

How are the chromosomes in a cell at metaphase of mitosis similar to and different from the?

The chromosomes are similar in that each is composed of two sister chromatids, and the individual chromosomes are positioned similarly at the metaphase plate. The chromosomes differ in that in a mitotically dividing cell, sister chromatids of each chromosomes are genetically identical.

What will happen during the next stage of mitosis to the chromosomes in that cell and why?

Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations. Telophase is followed by cytokinesis, or the division of the cytoplasm into two daughter cells.

What happens to a cell after M phase of cell cycle?

During the S phase of the cell cycle, DNA replicates, consequendy nucleocytoplasmic index increases due to increase in nuclear volume. During G2 phase, the cell is again stable. ... After M phase or mitosis when the cell divides, nucleoplasmic index returns to normal.

How do cells in metaphase I of meiosis differ from cells in metaphase of mitosis quizlet?

How do cells in metaphase 1 of meiosis differ from cells in metaphase of mitosis? In metaphase of mitosis the chromosomes align single file along the metaphase plate while in metaphase 1 homologous pairs align.

What occurs in mitosis or M phase prophase?

Prophase is the first phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses.

What happens if a cell fails the metaphase checkpoint?

In some organisms, the failure of alignment of even a single chromosome prevents the cell from initiating anaphase (33, 38). The resultant cell cycle delay may be extensive, causing the cell to degenerate without completing the division.

What is happening in the cell above the cell is in metaphase?

Metaphase is a stage in the cell cycle where all the genetic material is condensing into chromosomes. These chromosomes then become visible. During this stage, the nucleus disappears and the chromosomes appear in the cytoplasm of the cell.

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Hi everyone, my name is Stuart Morrison and I am the editor-in-chief and author of the Answeregy website. I am 35 years old and live in Miami, Florida. From an early age I loved to learn new things, constantly reading various encyclopedias and magazines. In 1998 I created my first Web site, where I posted interesting facts which you could rarely learn elsewhere. Then, it led me to work as a content manager for a large online publication. I always wanted to help people while doing something I really enjoyed. That's how I ended up on the team, where I... Read more