A scientist adds colchicine, a microtubule polymerization inhibitor, to a cell entering mitosis. At metaphase, the chromosomes of the cell were arranged as shown below. Explain why this arrangement is consistent with the application of colchicine. Predict how colchicine would affect the cell as it attempts mitosis. of

Why do cells undergo mitosis rather than meiosis to produce cells for growth and repair?     please solve with complete explanation

A somatic cell has the genotype DdEe. All chromosomes in this organism are metacentric. Show metaphase and the results of mitosis if the D and E locus are linked on the same chromosome in trans configuration.

The drug taxol is extracted from the bark of yew trees.  It binds tightly to microtubules and stabilizes them.  When added to cells, it causes much of the free tubulin to assemble into microtubules.  Taxol can be used as an anticancer drug.  At the molecular level, what does the drug prevent?  At the cellular level, what part of cell division does it prevent?  Be specific.

What choice best describes what happens immediately following the image below in the process of cell division. (level 3) The cytoplasms splits Sister chromatids are seperated to opposite sides of the cell chromatin condenses into chromatids a new nuclear envelope is formed tv MacBook Air 80 888 F3 F4 F7 #3 & 3 4 5 9. 7 8 E R Y U F G H J K <. C V command option V O Pass My Exams B OOO

Assume that you are growing mammalian cells in culture. You are able to synchronize the culture, meaning all of the cells undergo each stage of the cell cycle at the same time. The graph shows thelamount of DNA in the nuclei of cells during cycle1 and cycle 2 of cell growth II III IV First cycle Second cvele Amount of DNA in nucleus

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?

Identify the phase in mitosis in which the chromatin condenses into chromosomes. Select one: a. Telophase b. Anaphase c. Prophase d. Metaphase

You are studying the M-cyclin. You treat mitotic cells with an inhibitor of the proteasome and find that M-cyclin is no longer degraded and that this prolongs mitosis. You also find that in the presence of the inhibitor, M-cyclin is now running slower/larger in a Western than you have previously observed. In 1-2 sentences, explain why this might be happening. Edit View Insert Format Tools Table 12pt Paragraph B IU Αν S A C I AT²✓ #tv A MacBook Air X : G

(b) What is the role of microtubules in mitosis? How does vincristine contribute to the cell cycle arrest of cancer cells? Explain. Microtubules