Enlist the salient features o the double helix strucutre of DNA.

5

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Describe the process of DNA replication.

5

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(i)What are the three types of RNA?
(ii)Which one of these has the shape of a clover leaf in two-dimentional structure?
(iii)How is each RNA related in the information during protein synthesis?Explain.

5

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What is genetic code?Name the scientists and their contribution in deciphering the genetic code

5

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Describe the steps involved in the sequencing of genome of an organism.

5

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(a)Name two types of satellite DNA.Mention the basis for such a classification.
(ii)Show only diagrammatically the process of transcription in bacteria

5

(a)

Enumarate the salient features of human genome.

5

(a)

Who proposed that DNA replication is semiconservative? How was it experimentally proved by Meselson and Stahl?

5

(a)

Who proposed that DNA replication is semicoservative? How did Meselson and Stahl prove it experimentally?

5

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Name and describe the technique that will help in solving a case of paternity dispute over the custody of a child by two different families.

5

(a)