(C) During cell division,spindle fibres attach to a disc-shaped structure present on the surface of the centromere known as the kinetochore.Since the

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(C) During cell division,spindle fibres attach to a disc-shaped structure present on the surface of the centromere known as the kinetochore.Since the kinetochore is located on the centromere,the centromere is the primary constriction point where these fibres are anchored to facilitate chromosome movement.Therefore,the correct structure is the centromere.

Class 11 Biology Cell: The Unit of Life Nucleus and Chromosomes

Easy

The structure of the chromosome to which spindle fibres are attached is known as:

A
Chromatid
B
Telomere
C
Centromere
D
Chromomere

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Class 11

Biology Questions

Chapter

Cell: The Unit of Life

Subtopic

Nucleus and Chromosomes

Match the chromosome types based on the position of the centromere as shown in the standard classification:

Column-$I$ (Type) Column-$II$ (Description)

$1$. Metacentric $a$. Terminal centromere

$2$. Sub-metacentric $b$. Sub-terminal centromere

$3$. Acrocentric $c$. Middle centromere

$4$. Telocentric $d$. Slightly away from the middle

Column-$I$ (Type)	Column-$II$ (Description)
$1$. Metacentric	$a$. Terminal centromere
$2$. Sub-metacentric	$b$. Sub-terminal centromere
$3$. Acrocentric	$c$. Middle centromere
$4$. Telocentric	$d$. Slightly away from the middle