Q. How many layers of base pairs is present in every turn of helix?

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Q. Telomeres typically contain which of following?

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Q. Which of following is a DNA repair system?

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Q. Purine bases have how many rings in their structure?

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Q. How many types of histones are most commonly found in chromatin?

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Q. What is diameter of a nucleosome?

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Q. How many phosphate groups are lost from DNA as each monomer joins?

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Q. Why was purine-purine bonding theory not consistent with X-Ray diffraction data?

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Q. Telomeres from cells that have formed tumors have which of following quality?

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Q. Segments of DNA synthesized along lagging strand are called

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Q. Which of following is not a part of a DNA molecule

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Q. Which of following techniques is used by Crick to study protein structure?

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Q. How many DNA repair enzymes have been found so far in humans?

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Q. Which of following is an example of a purine base?

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Q. What is string of DNA between two nucleosomes called?

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Q. Amount of which of following bases is equal to amount Thymine?

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Q. Xeroderma pigmentosum is caused by a defect in which of following enzymes?

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Q. Which of following enzymes catalyzes synthesis of new DNA strand?

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Q. What is process of tagging each chromosome with molecular tags so each chromosome has a different color, called?

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Q. For their experiments, Hershey and Chase tagged phage DNA with which of following radioactive isotopes?

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