DNA Replication Concepts and Processes

What is the function of helicase in DNA replication?

• Synthesizing new DNA strands

• Unwinding the DNA double helix

• Joining Okazaki fragments

• Adding RNA primers

In prokaryotic cells, where does DNA replication occur?

• Nucleus

• Cytoplasm

• Mitochondria

• Ribosome

Who helped to understand base pairing in DNA?

• Watson and Crick

• Mendel and Darwin

• Franklin and Wilkins

• Avery and Griffith

What is the first step enzymes perform in DNA replication?

• Joining nucleotides

• Proofreading DNA strands

• Unzipping the DNA molecule

• Synthesizing proteins

Which of the following is NOT a function of DNA polymerase?

• Joining nucleotides

• Proofreading DNA strands

• Unzipping DNA molecules

• Synthesizing new DNA strands

What is the function of the replication fork in DNA replication?

• To synthesize RNA primers

• To separate DNA strands for replication

• To add nucleotides to the growing strand

• To join Okazaki fragments

In which type of cells does telomerase help prevent gene damage during replication?

• Slowly dividing cells

• Rapidly dividing cells

• Non-dividing cells

• Dead cells

What happens to telomerase in adult cells?

• It is always active

• It is often switched off

• It becomes more active

• It changes structure

What is the consequence of telomerase activation in cancer cells?

• Slower cell growth

• Rapid cell growth and spread

• Cell death

• DNA repair

Which of the following is NOT a function of telomerase?

• Preventing gene damage in rapidly dividing cells

• Adding DNA sequences to telomeres

• Synthesizing proteins

• Enabling cancer cell growth