DNA Replication and Protein Synthesis

What is the primary role of the helicase enzyme in DNA replication?

• To join Okazaki fragments

• To unzip the DNA double helix

• To synthesize RNA primers

• To add nucleotides to a growing DNA strand

Which enzyme is responsible for joining Okazaki fragments on the lagging strand during DNA replication?

• Helicase

• Primase

• Ligase

• DNA polymerase

What is the function of DNA polymerase in DNA replication?

• To unwind the DNA double helix

• To synthesize RNA primers

• To add nucleotides to a growing DNA strand

• To join Okazaki fragments

Which enzyme synthesizes RNA primers during DNA replication?

• Ligase

• Helicase

• Primase

• DNA polymerase

What does it mean for DNA strands to be anti-parallel?

• They run in the same direction

• They run in opposite directions

• They are identical

• They are complementary

What is meant by the term "semi-conservative" in DNA replication?

• Each new DNA molecule has two new strands

• Each new DNA molecule has one old and one new strand

• DNA replication occurs only once

• DNA replication is error-free

Which molecule is synthesized during transcription?

• DNA

• mRNA

• tRNA

• Protein

What is the role of tRNA in protein synthesis?

• To carry amino acids to the ribosome

• To transcribe DNA into RNA

• To form the ribosome

• To synthesize DNA

Which nitrogenous base is found in RNA but not in DNA?

• Adenine

• Thymine

• Uracil

• Cytosine

What process involves the conversion of mRNA into a protein?

• Transcription

• Translation

• Replication

• Mutation