Q1. Which process converts DNA information into mRNA?A. TranslationB. ReplicationC. TranscriptionD. Splicing
Q2. Which of the following statements about DNA polymerase is correct?A. DNA polymerase synthesizes DNA in the 3' to 5' direction.B. DNA polymerase requires an RNA primer to initiate replication.C. DNA polymerase removes introns during splicing.D. DNA polymerase unwinds the DNA helix.
Q3. What is the role of a promoter in transcription?A. Termination of transcriptionB. Binding site for RNA polymeraseC. Site of translation initiationD. Splicing of introns
Q4. Which nitrogenous base is present in DNA but absent in RNA?A. AdenineB. ThymineC. GuanineD. Uracil
Q5. Which of the following is NOT a feature of the central dogma of molecular biology?A. DNA → RNA → ProteinB. Replication is part of the central dogma.C. Reverse transcription is an exception to the central dogma.D. Proteins can directly encode genetic information.
Q6. Which scientist(s) proposed the Central Dogma of molecular biology?A. James WatsonB. Francis CrickC. Rosalind FranklinD. Erwin Chargaff
Q7. Which of the following statements about DNA structure is incorrect?A. DNA has a double-helix structure.B. The two strands of DNA run parallel to each other.C. The nitrogenous bases are connected by hydrogen bonds.D. DNA contains deoxyribose sugar.
Q8. Which type of RNA carries amino acids to the ribosome during translation?A. mRNAB. tRNAC. rRNAD. snRNA
Q9. Which of the following statements about RNA is correct?A. RNA is always double-stranded.B. RNA contains uracil instead of thymine.C. RNA is more stable than DNA.D. RNA does not participate in protein synthesis.
Q10. Which scientist discovered the transforming principle in bacteria?A. Oswald AveryB. Frederick GriffithC. Hershey and ChaseD. Maurice Wilkins