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Chromosomes

A chromosome ...

Question

A chromosome having a centromere at its middle is

A

Dicentric

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B

Metacentric

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C

Acrocentric

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D

Telocentric

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Solution

The correct option is B
Metacentric

Depending on the position of the centromere, chromosomes are of the following types:

Metacentric chromosome: The centromere is present right in the middle of the chromosome.

Sub-metacentric chromosome: The centromere is present a little away from the middle of the chromosome.

Acrocentric chromosome: The centromere is present close to one of the ends of the chromosome.

Telocentric chromosome: A terminal centromere.

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(a) acrocentric
(b) metacentric
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Q. Identify the correct match between the type of chromosomes and the position of the centromere.

\begin{matrix} Chromosomes & Position of centromere (A) Metacentric & (1) At the tip (B) Telocentric & (2) Almost near the tip (C) Acrocentric & (3) At the middle (D) Submetacentric & (4) Slightly away from the middle \end{matrix}

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Q. Match the columns

	Column I		Column II
(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 middle

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