Quiz về quá trình sao chép DNA

Quá trình sao chép DNA xảy ra ở chu kỳ nào của tế bào

• G1 (Gap 1 - First growth phase)

• S (Synthesis - Synthesis phase)

• G2 (Gap 2 - Second growth phase)

• M (Mitosis - Division phase)

Which enzyme participates in unwinding the double helix of DNA during replication?

• DNA polymerase

• Ligase

• Helicase

• Primase

During replication, which enzyme attaches free nucleotides to the original DNA strand?

• Helicase

• DNA polymerase

• Ligase

• Primase

What is the main function of the enzyme primase during DNA replication?

• Connect Okazaki fragments

• Create RNA primer

• Unwind DNA

• Cut hydrogen bonds

What are Okazaki fragments?

• Newly synthesized DNA segments on the leading strand

• Newly synthesized DNA segments on the lagging strand

• DNA segments recombined during replication

• Primers synthesized during replication

Which strand is synthesized continuously during DNA replication?

• Leading strand

• Lagging strand

• Both strands

• Neither strand

What type of nucleotide is the primer made of?

• DNA

• RNA

• Protein

• Sugar

Which enzyme is responsible for linking Okazaki fragments together?

• Primase

• Helicase

• Ligase

• DNA polymerase

In eukaryotic organisms, where does DNA replication occur in the cell?

• Mitochondria

• Cell membrane

• Nucleus

• Cytoplasm

DNA replication is considered to be:

• Completely conservative

• Semi-conservative

• Partially conservative

• Non-conservative