Why is the shape of a chromosome?

What is a chromosome shape?

Chromosomes are often observed and depicted as X-shaped structures. DNA takes this form following DNA replication during the process of cell division when the two replicated chromosomes, called chromatids, are highly condensed and still attached to one another at a point called the centromere.

What are chromosomes when do they form what is their shape?

DNA condenses and coils into the familiar X-shaped form of a chromosome, shown in Figure below, only after it has replicated. (You can watch DNA coiling into a chromosome at the link below.) Because DNA has already replicated, each chromosome actually consists of two identical copies.

What is chromosome structure and function of chromosomes?

Chromosomes, the thread-like structures are located inside the nucleus of all animal and plant cells. … Chromosomes are composed of DNA, histones, non-histone proteins, RNA and nucleic acids that help in the overall functioning of the cell for growth, reproduction and survival.

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