Tag: dbt jrf pyq 2021

50. Which one among the following is a nuclease? (a) DNase I (b) Helicase (c) Ligase (d) Polymerase What is a Nuclease? A nuclease is an enzyme responsible for cleaving […]

49. Lysosomal lumen is maintained at an acidic pH by: (a) de novo generation of H+ ions in the lysosomes (b) H+ ATPase that pumps H+ ions into lysosomes (c) […]

48. Given below are two statements: one is labelled as Assertion A and the other is labelledas Reason R. Assertion A: Ionizing radiation can cause damage to the DNA Reason […]

47. Type IIP restriction endonucleases will always: (a) Bind to double strand RNA (b) Cleave outside the recognition sequence (c) Generate blunt ends (d) Recognize palindromic sequence What Are Type […]

46. Though DNA and RNA are nucleic acids, isolating RNA in the laboratory requires extreme precautions and pre-preparations than isolating DNA. This could be because: (a) RNA is more prone […]

45. The Telomerase enzyme is a: (a) DNA–dependent DNA Polymerase , (b) DNA–dependent RNA Polymerase , (c) Reverse Transcriptase , (d) RNA–dependent RNA Polymerase   Telomerase Enzyme: A Unique Reverse […]

44. The consequences of a DNA base change in a mutation are maximum, if the base change is located in the: (a) First or second position of a codon , […]

43. A student clones a gene of interest within the ampicillin resistance gene of pBR322 vector for transformant selection, the student will use: (a) Ampicillin plates , (b) Both Ampicillin […]

42. Which one of the following components of an enveloped virus particle is NOT encoded by the viral genome? (a) Capsid proteins , (b) Envelope lipids , (c) Non- structural […]

41. Prokaryotic ribosomes bind to which one of the following: (a) Kozak sequence, (b) Ori sequence, (c) Promoter sequence, (d) Shine-Dalgarno sequence, What Sequence Do Prokaryotic Ribosomes Bind To? Protein […]