Tag: IIT JAM Biotechnology Previous Year Question paper Topic Wise

15. In DNA replication, the Okazaki fragments are joined by (A) DNA helicase (B) DNA ligase (C) DNA polymerase (D) DNA primase Okazaki Fragments in DNA Replication: Which Enzyme Joins […]

14. The rate of transcription in a bacterium is 50 nucleotides/min and the average molecular weight of an amino acid is 110 Da. Time taken for synthesis of the mRNA […]

13. Match the following Group I Group II P) Mismatch repair 1. DNA glycosylase Q) Base excision repair 2. UvrA, UvrB, UvrC and UvrD R) Nucleotide excision repair 3. RecA […]

12. Which one of the following is transcribed by RNA polymerase III in eukaryotes? (A) 18S rRNA (B) 28S rRNA (C) miRNA (D) tRNA RNA Polymerase III in Eukaryotes: Which […]

11. How many GTP molecules are required for the translocation of tRNA from P site to E site during translation elongation process in bacteria? How Many GTP Molecules Are Required […]

10. A double stranded DNA molecule of total 5000 base pairs long, has a melting temperature of 85°C. What will be the % AT base pairs in this sample? (up […]

9. In bacteria, the σ factor that plays a major role in transcription during the stationary phase is (A) σ⁷⁰ (B) σ⁵⁴ (C) σ²⁸ (D) σ³² Bacterial Sigma Factors: Which […]

8. DNA gyrase can (A) cut single-stranded DNA (B) relax supercoiled DNA (C) introduce negative supercoiling in DNA (D) not utilize ATP DNA Gyrase: Structure, Functions, Negative Supercoiling, and Role […]

7. Which of the following activity is associated with Klenow fragment? (A) 5′-3′ exonuclease activity (B) 5′-3′ endonuclease activity (C) Polymerase activity (D) 3′-5′ endonuclease activity Klenow Fragment: Activities, Functions, […]

6. A double helical DNA molecule is composed of 32 mol % of adenosine. The mol % of cytosine in this DNA molecule is ____. Chargaff’s Rule: Calculating the Cytosine […]