Q. 9 - Biology

Question

The mitotic spindles arise from which cell structure? 

a. centromere 

b. centrosome 

c. kinetochore 

d. cleavage furrow

Step-by-Step Solution

Answer

The correct option is B.  

Step. 1 Introduction

The mitotic spindle fiber seems to be a structure that arises following cell division and thus is responsible for separating identical chromosomes. 

Step. 2 Explanation for correct option.

Mitotic spindles are structures created throughout the cell cycle that divide copy chromosomes in the cells. They are produced by the centrosome. 

Step. 3 Explanation for incorrect option.

Option a. Centromeres are genomic sites that regulate kinetochore formation and spindle interaction throughout cell division.

Option c. A kinetochore seems to be a protein area present upon every chromatid's centromere.

Option d. The cleavage furrow seems to be the depression on the surface of the cell that initiates the cleavage process.