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Chromosomes

Identify the ...

Question

Identify the different types of chromosomes in the given image.

A

1. Telocentric 2. Metacentric 3. Sub-metacentric 4. Acrocentric

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B

1. Metacentric 2. Sub-metacentric 3. Acrocentric 4. Telocentric

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C

1. Submetacentric 2. Acrocentric 3. Telocentric 4. Metacentric

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D

1. Acrocentric 2. Telocentric 3. Metacentric 4. Submetacentric

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Solution

The correct option is C 1. Submetacentric 2. Acrocentric 3. Telocentric 4. Metacentric
Chromosomes can be of four different types based on the position of the centromere.

Metacentric chromosomes have the centromere in the centre, such that both arms are of equal length.

Submetacentric chromosomes have the centromere slightly offset from the centre leading to a slight asymmetry in the length of the two arms.

Acrocentric chromosomes have a centromere which is severely offset from the centre, leading to one very long and one very short arm.

Telocentric chromosomes have the centromere at the very end of the chromosome. This chromosome consists of only one arm.

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Similar questions

Q. A 'V' shaped chromosome has to
(a) acrocentric
(b) metacentric
(c) telocentric
(d) sub-metacentric

Q. Match column I with column II and select the correct option from the given codes

Sr.no	List I	Sr.no	List II
a.	V-shaped at anaphase	1.	Acrocentric chromosome
b.	L-shaped at anaphase	2.	Metacentric chromosome
c.	J-shaped at anaphase	3.	Telocentric chromosome
d.	I- shaped at anaphase	4.	Sub-metacentric chromosome

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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

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}

Q. Match Column-I with Column-II and select the correct option from the codes given below.

\begin{matrix} C o l u m n - I & C o l u m n - I I A . & V - s h a p e d a t a n a p h a s e & i) & A c r o c e n t r i c c h r o m o s o m e B . & L - s h a p e d a t a n a p h a s e & i i) & M e t a c e n t r i c c h r o m o s o m e C . & J - s h a p e d a t a n a p h a s e & i i i) & T e l o c e n t r i c c h r o m o s o m e D . & I - s h a p e d a t a n a p h a s e & i v) & S u b - m e t a c e n t r i c c h r o m o s o m e \end{matrix}

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