Q. Which bond is used to stabilize the double helix of DNA?

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Q. Which of these statements are INCORRECT according to chargaff’s rules?

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Q. A purified DNA sample of leaf contains 20.0 mole of guanine. Calculate the approximate percentage of purine residues?

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Q. Who described the structure of DNA double helix?

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Q. Which form of DNA is described by Watson-Crick model?

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Q. How many base pairs are there in every helical turn of Watson-Crick double helix model?

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Q. Which one of the following statement is INCORRECT for Z-DNA?

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Q. The third strand of triple helix is paired in which scheme?

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Q. Name the nitrogenous base which is found in abundance in G-quadruplex?

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Q. The stability and formation of G-quadruplex depends on __________

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Q. Which of this factor is not responsible for thermal denaturation of DNA?

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Q. Double-stranded DNA with high GC content has higher thermal stability than that of lower GC content?

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Q. What is the term given to the supercoiling of circular DNA?

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Q. Which of them is used to introduce negative supercoiling in DNA?

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Q. Molecules which play the key role in the transfer of genetic information during protein synthesis are ___________

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Q. Double helix formed by RNA is more stable than DNA.

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Q. Which form of structure has been adopted by RNA?

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Q. Name the RNA molecules which is used to carry genetic information copied from DNA?

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Q. Which of the following RNA molecule convert information stored in the nucleic acid to protein?

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Q. Name the secondary structure of tRNA?

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