Match the parts of the chromosome given in Co | vedclass

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Question

(C) The correct matching is as follows:$1$. Centromere $(c)$: It is the primary constriction where two sister chromatids are held together.$2$. Second

Vedclass · Accepted Answer

$1-c, 2-d, 3-a, 4-b$

Vedclass · Answer

(C) The correct matching is as follows:$1$. Centromere $(c)$: It is the primary constriction where two sister chromatids are held together.$2$. Secondary constriction $(d)$: It is a region other than the primary constriction where the nucleolus is organized.$3$. Kinetochore $(a)$: These are disc-shaped structures present on the sides of the centromere where spindle fibres attach during cell division.$4$. Chromatonema $(b)$: It refers to the long,unbranched,slender,and highly coiled $DNA$ thread within the chromosome.Thus,the correct sequence is $1-c, 2-d, 3-a, 4-b$.

Column $I$ (Chromosome)	Column $II$ (Explanation)
$1$. Centromere	$a$. Disc-shaped plate where spindle fibres get attached during cell division.
$2$. Secondary constriction	$b$. Long unbranched slender highly coiled $DNA$.
$3$. Kinetochore	$c$. Place where $2$ chromatids are joined together.
$4$. Chromatonema	$d$. Nucleolus gets organised at this place.

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