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23 Nov 2018

A biologist examines a series of cells and counts 90 cells in interphase, 13 cells in prophase, and 12 cells in metaphase, 3 cells in anaphase, and 2 cells in telophase. If a complete cycle for this type of cell requires 24 hours, what is the average duration of mitosis?

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Nelly StrackeLv2

24 Nov 2018

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Related questions

1) When studying living cells in a laboratory, researchers sometimes use drugs as a way to cause cells to remain in a particular phase of the cell cycle. For example, aphidicolin inhibits DNA synthesis in eukaryotic cells and causes them to remain in the G1 phase because they cannot replicate their DNA. In what phase of the cell cycleâG1, S, G2, prophase, metaphase, anaphase, or telophaseâwould you expect somatic cells to stay if the following types of drug were added?

a) A drug that inhibits microtubule formation

b) A drug that allows microtubules to form but prevents them from shortening

c) A drug that inhibits cytokinesis

d) A drug that prevents chromosomal condensation

rosewallaby553

Lab 11 Mitosis

Interphase - Chromosomes are not visible because they areuncoiled

Prophase- The chromosomes coil. The nuclear membranedisintegrates. Spindle fibers (microtubles) form. The drawing showsa cell with 8 chromosomes. Each chromosome has 2 chromatids for atotal of 16 chromatids.

Prometaphase

Metaphase - The chromosomes become aligned. The drawing shows acell with 8 chromosomes. Each chromosome has 2 chromatids for atotal of 16 chromatids.

Anaphase- The chromatids separate; the number of chromosomesdoubles. The drawing shows a cell with 16 chromosomes. Eachchromosome has 1 chromatid for a total of 16chromatids

Telophase- The cell divides into two. The chromosomes uncoil.The nucleus reforms. The spindle apparataus disassembles. Thedrawing shows a cell with 16 chromosomes. Each chromosome has 1chromatid for a total of 16 chromatids.

Ques(ons

1. What stage were most of the onion root p cells in? Does thismake sense?

2. As a cell grows, what happens to its surface area : volumerao? (Think of a balloon being blown up). How is this changing raonrelated to cell division?

3. What is the function of mitosis in a cell that is about todivide?

4. How accurate were your met predictions for each stage of thecell cycle?

5. Discuss one observation that you found interesting whilelooking at the onion root p cells.

6. What would happen if mitosis were uncontrolled?

for escience lab 11 bio 113

burgundyspider301