DNA Replication (2024-25)

What is the primary function of DNA replication?

• To create proteins

• To make new cells

• To produce exact copies of DNA

During DNA replication, the DNA double helix is:

• Condensed into chromosomes

• Unwound by DNA helicase

• Broken into fragments

Which enzyme is responsible for joining Okazaki fragments?

• DNA polymerase

• DNA ligase

• DNA helicase

The leading strand is synthesized:

• In small fragments

• From 5' to 3' continuously

• From 3' to 5' continuously

What is the role of primase in DNA replication?

• To add RNA primers

• To break hydrogen bonds

• To proofread DNA

Which statement about DNA replication is correct?

• It occurs during mitosis only

• It is a conservative process

• It is semiconservative

The enzyme that proofreads newly synthesized DNA is:

• Topoisomerase

• DNA helicase

• DNA polymerase

Replication occurs:

• In the cytoplasm

• In the nucleus

• In the Golgi apparatus

• In mitochondria only

The lagging strand is synthesized:

• Continuously

• In Okazaki fragments

• From 3' to 5'

• Without primers

DNA polymerase can only add nucleotides:

• To the 5' end

• In any direction

• To the 3' end

• Without primers