Q. In vertebrate DNA, which base is frequently present in place of cytosine on which methyl transferase acts?

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Q. Which base is generated by the deamination of 5-methylcytosine?

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Q. Which laboratory mutagen is prone to mutation of DNA?

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Q. Which site of guanine is the site for mutation?

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Q. What is the product by mutation by oxidation of DNA?

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Q. To which base OXOG base pairs?

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Q. In the case of thymine dimer which type of ring compound is formed?

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Q. 5-bromouracil is the analog of which base?

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Q. Bleomycin is the anticancer agent.

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Q. In the following compound which is one of the intercalating agents?

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Q. What is the correct definition of excision repair?

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Q. How many types of excision repair systems are known?

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Q. Why recombinational repair system is called double strand break repair?

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Q. Which enzyme is activated during double stranded break?

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Q. What is the main enzyme that plays a major role in formation of thymine dimer?

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Q. Which two Uvr component molecules scan the DNA during nucleotide excision repair?

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Q. After creation of the bubble which Uvr component are recruited?

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Q. Which complex in E. coli performs in translesion synthesis?

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Q. In humans which DNA polymerase is involved?

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Q. The genes encoding the translesional polymerases are expressed as part of a pathway known as the SOS response.

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