Why do neurons and some other specialized cells divide infrequently?     They have entered into G0.     They no longer have active nuclei.     They no longer produce MPF.     They can no longer degrade cyclins.

DNA replication takes place. Cytoplasm divides. Chromosomes align at the equator of the cell. Centromeres split; sister chromatids pull apart. Chromosomes condense. Chromatids move to opposite poles. The sequence in which the events numbered above occur in cell division is:

A researcher is studying the effects of a novel cancer drug on cell division and comparing the new drug to a traditional chemotherapy drug. The traditional drug causes numerous side effects such as nausea, vomiting, hair loss and susceptibility to infections due to low white blood cell counts. The novel drug is a targeted therapy (specifically targets the abnormal protein in the cancer cell) and is likely to reduce side effects that patients experience when treated with traditional chemotherapy. One group of cancer patients was treated with the novel drug and a second group of cancer patients was treated with the traditional chemotherapy drug. Prior and subsequent to treatment, a mitotic index was obtained from a tumor sample from each patient as well as a bone marrow sample (bone marrow cells give rise to all blood cell types including red blood cells and white blood cells). Since this is a double-blind study (neither the patient nor the researcher knows which patients received which…

Which cell replicates via meiosis? red blood cell skin cell heart cell sperm cell

A student lists some of the benefits of mitosis. • It enables a cell to make its exact copy. • It replaces worn-out or damaged cells with new cells. • It produces two identical daughter cells from a single parent cell. Which other benefit can the student include in the list? O It helps in the release of oxygen. O It helps in the generation of energy. O It helps in the asexual reproduction of an organism. O It helps in the removal of waste from the cell.

What does cancer drugs play in interrupting mitosis of cancer cells?  How do these drugs do that?

Radiation therapy is commonly used in the treatment of cancer because it interferes with the formation of the mitotic spindle. O inhibits growth factor signaling pathways. induces DNA double-strand breaks. destroys oncogenes. induces mutations in tumor suppressor genes.

What term is most closely associated with the term "differentiation"? O new growth O taking on a cellular fate O mitosis O genetic mutation O translation

Radiation, which induces DNA damage, inhibits cancer progression by:     Breaking down Rb     Breaking down cohesin     Activating p53     Phosphorylating Cdk     Breaking down the mitotic spindle

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