DNA Replication Quiz

What is the nature of DNA replication in terms of strand conservation?

• Dispersive

• Semi-conservative

• Non-conservative

• Conservative

In which phase of the cell cycle does DNA replication occur?

• G2 phase

• S phase

• Mitosis

• G1 phase

What is the first stage of DNA replication?

• Termination

• Initiation

• Licensing

• Elongation

What is the role of the origin recognition complex (ORC) in DNA replication?

• It terminates replication

• It binds to origins of replication to initiate replication

• It elongates the DNA strand

• It repairs DNA

What is the function of the MCM complex in DNA replication?

• It repairs DNA

• It synthesizes new DNA strands

• It unwinds DNA strands

• It terminates replication

What is the main difference between eukaryotic and prokaryotic DNA replication origins?

• Eukaryotes have multiple origins, prokaryotes have one

• Prokaryotes have multiple origins, eukaryotes have one

• Both have multiple origins

• Both have a single origin

What is the role of CDC6 and CDT1 in DNA replication?

• They terminate replication

• They load the MCM complex onto DNA

• They repair DNA

• They synthesize new DNA strands

What is the CMG complex composed of?

• Topoisomerase, primase, and ligase

• ORC, CDC6, and CDT1

• DNA polymerase, helicase, and ligase

• CDC45, MCM complex, and GINS

What role does replication protein A (RPA) play in DNA replication?

• It synthesizes new DNA strands

• It prevents single-stranded DNA from re-annealing

• It terminates replication

• It repairs DNA

How do topoisomerases assist during DNA replication?

• They relieve torsional strain by breaking DNA strands

• They prevent DNA from unwinding

• They synthesize new DNA strands

• They repair DNA