Mark the following statements as true (T) or false (F) and select the correct option : A. Acrocentric chromosome appears J-shaped during anaphase. B. Centromere holds two chromatids together. C. Outer membrane of nucleus is connected with SER only.

 

 Question:  From NCERT  | NEET   || [Difficult level:Medium] Subtopic:8.5.3.1 The Endoplasmic Reticulum (ER) 8.5.10 NucleusSubtopic:8.5.3.1 The Endoplasmic Reticulum (ER)  || 

:Mark the following statements as true (T) or false (F) and select the correct option :

A. Acrocentric chromosome appears J-shaped during anaphase.

B. Centromere holds two chromatids together.

C. Outer membrane of nucleus is connected with SER only.

	A	B	C
1.	T	F	F
2.	F	T	T
3.	T	T	F
4.	F	F	T

: 

3.

T

T

F

.....

: .Reference(3):

In case of acrocentric chromosome the centromere is situated close to its end forming one extremely short and one very long arm

[In anaphase,centrosome move towards peripheriy and two sister chromatid trailing behind. As centromere is acrocentric, one arm is small and other is large , forming shape like J. : Explanation based on Cell cycle and cell devision chapter]

Centromere holds two chromatids of a chromosome.

RER is frequently observed in the cells actively involved in protein synthesis and secretion. They are extensive and continuous with the outer membrane of the nucleus.

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