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Molecular Basis of Inheritance

Short Answer Type

21. Name the three stop codons.

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One Word Answers

22. Name the initiator codon.

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Short Answer Type

23. What is the exception to the general rule that DNA is the genetic material in all organisms ? Give evidences that support these exceptions.

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24. What do you mean by a term ‘replication fork’ ?

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25. During DNA replication the nature of replication on 5’-3’ strand and 3'-5' strand is?

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26. Name the nitrogen bases present in RNA.

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27. What are the essential requirements of the genetic materials ?

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Long Answer Type

28. List the various evidences for genetic role of DNA

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Short Answer Type

29. What does transformation experiment prove ?

Bacterial transformation proved that DNA is the actual Transforming substance and not the RNA and proteins. The experiment showed that RNases and proteases do not affect the transformation whereas DNases have a negative effect on tranformation.

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30. What is the contribution of Avery, MacCleod and McCarty ?

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