23. A biologist examines a series of cells and counts 160 cells in interphase, 20 cells in prophase, six cells in prometaphase, two cells in metaphase, seven cells in anaphase, and five cells in telophase. If the complete cell cycle requires 24 hours, what is the average duration of the M phase in these cells? Of metaphase?

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23. A biologist examines a series of cells and counts 160 cells in interphase, 20 cells in prophase,
six cells in prometaphase, two cells in metaphase, seven cells in anaphase, and five cells in
telophase. If the complete cell cycle requires 24 hours, what is the average duration of the M phase
in these cells? Of metaphase?
26. A cell in G1 of interphase has 12 chromosomes. How many chromosomes and DNA molecules
will be found per cell when this original cell progresses to the following stages?
a. G2 of interphase
b. Metaphase I of meiosis
c. Prophase of mitosis
d. Anaphase I of meiosis
e. Anaphase II of meiosis
f. Prophase II of meiosis
g. After cytokinesis following mitosis
h. After cytokinesis following meiosis II
Transcribed Image Text:23. A biologist examines a series of cells and counts 160 cells in interphase, 20 cells in prophase, six cells in prometaphase, two cells in metaphase, seven cells in anaphase, and five cells in telophase. If the complete cell cycle requires 24 hours, what is the average duration of the M phase in these cells? Of metaphase? 26. A cell in G1 of interphase has 12 chromosomes. How many chromosomes and DNA molecules will be found per cell when this original cell progresses to the following stages? a. G2 of interphase b. Metaphase I of meiosis c. Prophase of mitosis d. Anaphase I of meiosis e. Anaphase II of meiosis f. Prophase II of meiosis g. After cytokinesis following mitosis h. After cytokinesis following meiosis II
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