#10 d) cytokinesis 9. From the pole to the chromosome, what is the correct order

Question

#10 d) cytokinesis 9. From the pole to the chromosome, what is the correct order? a) centrosome, microtubule, kinetochore, chromosome b) microtubule, kinetochore, chromosome, centrosome d) centrosome, kinetochore, chromosome, microtubule 10. You are observing a line of rat cells and see that they repeatedly make mistakes in the cell cycle by going through the G? checkpoint too early. This could be due to a a) b) c) d) problem with expression of a cyclin. misplaced MPF. defective chromosome. misfolded centromere protein. l 1406 chards PB

Explanation / Answer

Question 9

Answer A

Centromere suspends the microtubules which attaches to the kinetochore located on either side of the chromosome .

Question 10: Answer B

If reduced expression of cyclins , the cell cycle wont proceed.

If defective chromosome and misfolded centromere protein , the cell cycle wont be priceeding through G1- S phase itself.

Futher MPF ( maturation promoting factor control G2-M . So if that is misplaced , a cell will quickly pass through G2- M phase

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