Q. The recognition sequence is at times palindromic in nature. Which of the following statements is correct with respect to it?

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Q. If all the nucleotides are present with equal frequencies and at random, what are the chances of having a particular four nucleotide long motif?

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Q. Isoschizomers are defined as ___________

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Q. Isocaudomers are defined as the enzymes which recognize different sequence but generate same ends. Which of the following pairs of enzymes can be termed as isocuadomers?

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Q. The specificity of an enzyme is affected by the concentration of buffer used. This phenomenon is termed as:

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Q. Which of the following statements is correct with respect to a unit of an enzyme?

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Q. Which of the following statement is correct regarding partial digestion?

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Q. Which of the following is the correct nomenclature of a restriction enzyme obtained from the first activity of strain R of Escherichia coli?

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Q. Why is DNase preferred over restriction endonuclease in some cases?

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Q. The ends created by use of DNase have unique single stranded sequences.

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Q. Besides enzymatic means, physical stress can also be used for cleaving the DNA. Which of the following statements is true?

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Q. Phosphatases refer to __________

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Q. How is phosphatase related to the ligation reactions?

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Q. How can phosphatase activity terminated prior to a ligation reaction?

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Q. Basic classification of polymerases includes how many types?

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Q. Polymerase can be defined as ______________

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Q. Which of the following activity is not possible in the case of DNA polymerase I?

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Q. The E. coli DNA polymerase enzyme gives different domains with different activities on cleaving with protease subtilisin. Which of the following statements is correct with respect to the fragments generated?

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Q. Removal of single stranded portions produced due to exonucleolytic activity and due to polymerase activity are termed as _____________

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Q. Thermostable DNA polymerases are very important in PCR. How are they obtained?

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