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• Which of the following involves carrying genetic information from DNA for protein synthesis?(a) m-RNA(b) t-RNA(c) r-RNA(d) sn-RNAThe question was posed to me in an international level competition.Origin of the question is Nucleic Acid Chemistry in section Nucleotides and Nucleic Acids of Biochemistry
• Which of the following is false about purine and pyrimidine bases?(a) They are hydrophobic and relatively insoluble in water at the near-neutral pH of the cell(b) At acidic or alkaline pH the bases become charged and their solubility in water increases(c) Purines have two rings in their structure, but pyrimidine bases have only one ring(d) At acidic or alkaline pH the bases become charged and their solubility in water decreasesThis question was addressed to me in homework.I need to ask this question from Nucleotides & Nucleic Acids Basics in portion Nucleotides and Nucleic Acids of Biochemistry
• What is the composition of nucleoside?(a) a sugar + a phosphate(b) a base + a sugar(c) a base + a phosphate(d) a base + a sugar +phosphateThe question was asked in unit test.My doubt is from Nucleotides & Nucleic Acids Basics in section Nucleotides and Nucleic Acids of Biochemistry
• Which of the following is false?(a) The stability of an RNA-DNA hybrid is generally intermediate between that of RNA and DNA(b) RNA duplexes are more stable than DNA duplexes(c) DNA duplexes are more stable than RNA duplexes(d) DNA duplexes are less stable than RNA- DNA hybridThe question was posed to me in homework.Asked question is from Nucleic Acid Chemistry topic in chapter Nucleotides and Nucleic Acids of Biochemistry
• What happens in hyperchromicity?(a) When DNA is in bound form, there is decrease in absorption of UV light(b) When DNA is in bound form, there is increase in absorption of UV light(c) When DNA is in unbound form, it is more stable(d) When DNA is in unbound form, there is increase in absorption of UV lightThis question was addressed to me by my school teacher while I was bunking the class.I need to ask this question from Nucleic Acid Chemistry in chapter Nucleotides and Nucleic Acids of Biochemistry
• Which of the following is true about tm?(a) It can be termed as renaturation temperature(b) The higher the content of G ≡ C base pairs, the higher the tm(c) The higher the content of A = T base pairs, the higher the tm(d) The higher the content of G ≡ C base pairs, the lower the tmThe question was asked at a job interview.My question is from Nucleic Acid Chemistry topic in portion Nucleotides and Nucleic Acids of Biochemistry
• Which of the following statements is true?(a) Sugar component of a nucleotide is ribose(b) Sugar component of a nucleotide is deoxyribose(c) The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkage(d) The sugar molecule of the nucleotide is in L-configurationThis question was addressed to me in an internship interview.This question is from Nucleotides & Nucleic Acids Basics in division Nucleotides and Nucleic Acids of Biochemistry
• The sugar molecule in a nucleotide is ____________(a) Pentose(b) Hexose(c) Tetrose(d) TrioseI got this question in an interview for job.The query is from Nucleotides & Nucleic Acids Basics topic in division Nucleotides and Nucleic Acids of Biochemistry
• Identify the purine base of nucleic acids in the following.(a) Cytosine(b) Thymine(c) Uracil(d) AdenineI got this question in quiz.This is a very interesting question from Nucleotides & Nucleic Acids Basics in chapter Nucleotides and Nucleic Acids of Biochemistry
• What is the composition of nucleotide?(a) a sugar + a phosphate(b) a base + a sugar(c) a base + a phosphate(d) a base + a sugar +phosphateThis question was posed to me in semester exam.This key question is from Nucleotides & Nucleic Acids Basics in division Nucleotides and Nucleic Acids of Biochemistry