Q. Which of the following has the self-repairing mechanisms?

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Q. The function of enzyme involved in base excision repair is

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Q. The DNA polymerase involved in base excision repair is

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Q. An alteration in a nucleotide sequence that changes a triplet coding for an amino acid into a termination codon is

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Q. A point mutation that replaces a purine with another purine, or a pyrimidine with another pyramidine

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Q. The enzyme of E.coli is a nuclease that initiates the repair of double stranded DNA breaks by homologous recombination

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Q. Recombinational repair is often due to

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Q. The enzyme photolyase is used in what method of repair?

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Q. Which of the following involves remarkable capacity of short segment of DNA to move from one place to another?

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Q. Which of the following process occurs between DNA molecules of very similar sequences?

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Q. Which of the following process occurs in regions where no large –scale sequence similarity is apparent?

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Q. Which of the following process generates a new copy of the transposable element at a new location of DNA?

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Q. Which of the following occurs between particular short sequences present on otherwise dissimilar parental molecules?

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Q. Which of the following promotes branch migration at higher rates than does Rec-A?

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Q. Which of the following is called a resolvase?

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Q. Which of the following does not code for an enzyme having both helicase and nuclease activity?

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Q. The sequences of the recombination sites recognized by site-specific recombinases are

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Q. Which of the following contain only the sequences required for transposition and the genes for proteins that promote the process?

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Q. Transcription is catalyzed by

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Q. Where does RNA polymerase bind DNA?

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