Give Reason :Eukaryotic DNA is condensed and supercoiled.

1.	Give Reason :Eukaryotic DNA is condensed and supercoiled.
Answer» 1. In a typical mammalian cell, length of DNA double helix is approximately 2.2 metres. 2. The size of typical nucleus is approximately 10^-6 m 3. Such a long DNA molecule has to be fitted in small nuclear space. 4. Therefore, DNA is highly condensed, coiled and supercoiled so that it can be accommodated in the nucleus.

Answer»

1. In a typical mammalian cell, length of DNA double helix is approximately 2.2 metres.

2. The size of typical nucleus is approximately 10^-6 m

3. Such a long DNA molecule has to be fitted in small nuclear space.

4. Therefore, DNA is highly condensed, coiled and supercoiled so that it can be accommodated in the nucleus.

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