Bio Ch 12 Review

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A human bone marrow cell, in prophase of mitosis, contains 46 chromosomes. How many chromatids does it contain? See Concept 12.1 (Page)

92

Which statement provides the best description of the interphase portion of the cell cycle?

During interphase, a cell is metabolically active.

Which of these phases includes all of the stages of mitosis but no other events?

E

The figure shows the eukaryotic chromosome as it would appear during interphase, during each of the stages of mitosis, and during cytokinesis. Label the stages, the nuclear envelope and any microtubules attached to the chromosome(s). Drag the appropriate labels to their respective targets.

RED TOP TO BOTTOM: chromatin nuclear envelope microtubules nuclear envelope BLUE LEFT TO RIGHT TOP TO BOTTOM: (first row) interphase prophase (second row) prometaphase metaphase anaphase (third row) telophase (fourth row) cytokinesis

Through a microscope, you can see a cell plate beginning to develop across the middle of a cell and nuclei forming on either side of the cell plate. This cell is most likely

a plant cell in the process of cytokinesis. Submit

During _____ the cell grows and replicates both its organelles and its chromosomes.

interphase

Which of the following occurs during S phase?

replication of DNA

During _____ both the contents of the nucleus and the cytoplasm are divided.

the mitotic phase

Which of the following is true of benign tumors, but not malignant tumors?

they remain confined to their original site


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