What are Chromosomes give its 2 Components

Chromosomes and its 2 Components

 

Shape:-

 

Chromosomes are thread like structures.

 

Centromere:

 

It is present in the center of chromosomes.

 

Chromotids:

 

They are two in numbers and attached on centromere.

 

Number of chromosomes:

 

Chromosomes are constant in any organisms and never change through out the life cycle. In human they are 46, in onion they are 16, in radish they are 18 etc.

 

Composition:

They are composed of protein and DNA. Presence of DNA shows that they are living.

 

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