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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 […]