Different types of chromosomes can be recognised by the position of the following separating the two arms.

Which structure is present within a chromosome?

Chromatin is composed of ........

Which of the following structures is regularly transported from the nucleus to the cytoplasm?

What is a centromere? How does the position of the centromere form the basis of the classification of chromosomes? Support your answer with a diagram showing the position of the centromere on different types of chromosomes.

Protoplasm found inside the nucleus is known as