MCQ
Match column-$I$ with column-$II$ and choose the correct option.
Column-$I$ Column-$II$
(Chromosome) (Position of Centromere)
$A$. Metacentric $I$. At the tip
$B$. Submetacentric $II$. Almost near the tip
$C$. Acrocentric $III$. At the middle
$D$. Telocentric $IV$. Slightly away from the middle
  • $A - III ; B - IV ; C -II ; D -I$
  • B
    $A - IV ; B - III ; C - II ; D -I$
  • C
    $A -I ; B - II ; C - I I I ; D - IV$
  • D
    $A-I V ; B-I I I ; C-I ; D-II$

Answer

Correct option: A.
$A - III ; B - IV ; C -II ; D -I$
a
Metacentric chromosomes have the centromere in the centre, such that both sections are of equal length. Human chromosome $1$ and $3$ are metacentric. Sub metacentric chromosomes are a chromosome with the centromere so placed that it divides the chromosome into two arms of strikingly unequal length. Acrocentric chromosomes have a centromere which is located almost near the tip leading to one very long and one very short section. Human chromosomes $13,15,21$, and $22$ are acrocentric. Telocentric chromosomes have centromere which is located at the terminal end. Telomeres may extend from both ends of the chromosome. Humans do not possess telocentric chromosomes.

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