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Endoplasmic Reticulum

Microtubules ...

Question

Microtubules grow from the poles to kinetochores of each chromatid during prophase.

A

True

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B

False

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Solution

The correct option is A True
Microtubules are involved in nucleic and cell division, organization of intracellular structure, and intracellular transport, as well as ciliary and flagellar motility.

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Q. Microtubules from opposite poles of spindle get attached to kinetochores of sister chromatids during

Q. In which of the following phase the microtubules from opposite poles of the spindle gets attached to the kinetochores of sister chromatids?

Q. Which of the following events takes place during anaphase stage of mitosis?
I. Spindle fibres attach to kinetochores of chromosomes
II. Centromeres split and chromatids separate
III. Chromatids move to opposite poles
IV. Nucleolous, Golgi complex and E.R. reform

________ is characterised by all the chromosomes coming to lie at the equator, with one chromatid connected by its kinetochore to spindle fibres from one pole and its sister chromatid connected by its kinetochore to spindle fibres from the opposite pole.

Q. The events shown below occur during different phases:
a. Centromere splits, chromatids separate and move to opposite poles, chromatids are now called chromosomes.
b. Chromosomes cluster at opposite poles, decondensation of chromosomes, reappearance of the nuclear membrane, golgi bodies, and the ER.
c. Chromosomal replication.
d. Kinetochores attach to spindle fibres and chromosomes are arranged at the equatorial plate.
e. Condensation of chromosomal materials.

Which of the following correctly identifies each of the phases described?

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