DNA Replication Practice Questions

Front

What is the role of RNA Primase in DNA replication?

Back

RNA Primase lays down RNA primer for new nucleotide bases.

Front

What do single-strand binding proteins do during DNA replication?

Back

They prevent the single-stranded DNA from re-annealing.

Front

What type of bond holds the two DNA strands together?

Back

Hydrogen bonds.

Front

What is the function of DNA Helicase?

Back

DNA Helicase unwinds the original DNA strand.

Front

What is the role of DNA Polymerase in DNA replication?

Back

DNA Polymerase builds new strands by bringing in new nucleotide bases.

Front

What is the function of Ligase in DNA replication?

Back

Ligase knits together fragments on the lagging strand.

Front

What is the first step in DNA replication?

Back

The unwinding of the DNA helix by DNA Helicase.

Front

What happens after RNA Primase lays down the RNA primer?

Back

DNA Polymerase begins to synthesize the new DNA strand.

Front

What is the significance of Okazaki fragments?

Back

Okazaki fragments are short sequences of DNA synthesized on the lagging strand during DNA replication.

Front

What is the overall purpose of DNA replication?

Back

To produce two identical copies of DNA from one original DNA molecule.