DNA Quiz

Which of the following is a component of a DNA nucleotide?

• Ribose sugar

• Deoxyribose sugar

• Phosphate group

• Uracil

What type of bond holds the two strands of DNA together?

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

• Peptide bonds

In which direction does DNA polymerase add nucleotides during DNA replication?

• 3' to 5'

• 5' to 3'

• Randomly

• Both directions

Which of the following is the correct sequence of events in protein synthesis?

• Transcription, Translation, Replication

• Replication, Transcription, Translation

• Translation, Transcription, Replication

• Transcription, Translation

What is the role of mRNA in protein synthesis?

• To carry amino acids to the ribosome

• To form the ribosome

• To carry the genetic code from DNA to the ribosome

• To catalyse peptide bond formation

Which of the following is NOT a component of a DNA molecule?

• Adenine

• Thymine

• Guanine

• Uracil

Which enzyme is responsible for synthesizing the new DNA strand during replication?

• Helicase

• DNA polymerase

• Ligase

• Primase

What is the function of ribosomes in protein synthesis?

• To carry genetic information

• To synthesize RNA

• To catalyze the formation of peptide bonds

• To unwind DNA

What is the primary function of ribosomes in a cell?

• DNA replication

• Protein synthesis

• Lipid metabolism

• Carbohydrate storage

Which process converts mRNA into a protein?

• Transcription

• Translation

• Replication

• Translocation