(A) The chromosome is composed of a central matrix enclosed by a thin,transparent,and non-genetic membrane known as the $Pellicle$. Inside the $Pellic

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(A) The chromosome is composed of a central matrix enclosed by a thin,transparent,and non-genetic membrane known as the $Pellicle$. Inside the $Pellicle$,there is a jelly-like substance called the $Matrix$. Embedded within the $Matrix$ are the $Chromonemata$ (coiled threads). Therefore,the outermost covering of a chromosome is the $Pellicle$.

Class 11 Biology Cell: The Unit of Life Nucleus and Chromosomes

Easy

The outermost covering of a chromosome is known as ..........

A
Pellicle
B
Matrix
C
Chromonema
D
Centromere

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Class 11

Biology Questions

Chapter

Cell: The Unit of Life

Subtopic

Nucleus and Chromosomes

$A$ : Telocentric chromosome has two unequal arms.
$R$ : The centromere is situated close to its end forming one extremely short arm.

Medium

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Match List-$I$ with List-$II$:

List-$I$ List-$II$

$(a)$ Metacentric chromosome $(I)$ Centromere situated close to the end forming one extremely short and one very long arm

$(b)$ Acrocentric chromosome $(II)$ Centromere at the terminal end

$(c)$ Sub-metacentric $(III)$ Centromere in the middle forming two equal arms of chromosomes

$(d)$ Telocentric chromosome $(IV)$ Centromere slightly away from the middle forming one shorter arm and one longer arm

Choose the correct answer from the options given below:

List-$I$	List-$II$
$(a)$ Metacentric chromosome	$(I)$ Centromere situated close to the end forming one extremely short and one very long arm
$(b)$ Acrocentric chromosome	$(II)$ Centromere at the terminal end
$(c)$ Sub-metacentric	$(III)$ Centromere in the middle forming two equal arms of chromosomes
$(d)$ Telocentric chromosome	$(IV)$ Centromere slightly away from the middle forming one shorter arm and one longer arm