Question

Explain the structure and function of chromosome

Answer 1

x shape and it function is to transfer the genetic material from parent to offspring

Answer 2

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Each chromosome is in condensed form. It is visible during the start of cell division.

A chromosome consists of two chromatids which are joined at some point along the length. This point of attachment is called centromere which appears as a small constricted region.

Each centromere of a chromosome is located at a particular site.

The centromere serves to attach to the spindle fibre during the cell division.

The centromere serves to attach to the spindle fibre during the cell division. As the spindle fibre contracts, the sister chromatids get separated at the centromere and each chromatid is pulled away from the other towards the two poles of the dividing cell.

After the completion of cell division, the chromatids decondense and revert to their very long and fine thread-like chromatin fibres. There would be as many chromatin fibred inside nucleus as the number of chromosomes that appear during cell division.

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