MICROANATOMY

INTRODUCTION TO MICROSCOPY CELL BIOLOGY

CYTOSKELETON

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Microtubules of a dividing cell form the mitotic spindle.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -During mitosis, microtubules similarly extend outward from duplicated centrosomes to form the mitotic spindle, which is responsible for the separation and distribution of chromosomes to daughter cells.

Detailed explanation-2: -Spindle fibers are made up of microtubules and they appear as spindle-shaped structures (thus, the name). They develop outside the nucleus during mitosis. The major components of the mitotic spindle include the spindle fibers (microtubules), microtubule-associated proteins, and the microtubule organizing center.

Detailed explanation-3: -The mitotic spindle. The spindle is made of microtubules that originate from the centrosomes, which have migrated to opposite sides of the cell. There are three types of spindle microtubules: the kinetochore microtubules (K), polar microtubules (P), and astral microtubules (A).

Detailed explanation-4: -The correct answer is (c); it is composed of microtubules, which help separate the chromosomes to opposite poles of the cell. See full answer below.

There is 1 question to complete.