Q. Mutations in the DNA may be passed to the next generation.

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Q. How many pathways of nucleotide excision repair exist?

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Q. Which repair system operates to remove the altered bases generated by reactive chemicals present in the diet?

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Q. Which repair system operates to repair DNA strands that are actively transcribed?

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Q. A mismatched base pair can cause ________________ in the double helix.

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Q. Which of the following does not introduce double-strand breaks in the DNA?

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Q. The NHEJ pathway is used to rectify __________________ in the DNA.

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Q. Xeroderma pigmentosum is caused by ______________________

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Q. How many types of skin cancers can develop by overexposure to ultraviolet rays?

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Q. Which form of Xeroderma pigmentosum is observed in patients who cannot synthesize functional polymerase Η?

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Q. Replicative polymerase Η belongs to a family of polymerases involved in ________________

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Q. Which if the following polymerases have an unusually spacious active site?

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Q. Translesion synthesis polymerases lack processivity.

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Q. Which term is used to refer to a period between the cell divisions?

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Q. There are ______ major phases in a cell cycle.

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Q. Meiosis produces cells that have half the genetic content as their parent cells.

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Q. Asynchronous cultures are the ones whose cells are _______________________

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Q. DNA replication can be monitored by incorporation of ______________________

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Q. DNA replication occurs during _________________ of the cell cycle.

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Q. Which of the following cells do not lack the ability to divide?

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