Quick 10Q: DNA Replication

Front

What are the base pairing rules in DNA?

Back

A pairs with T with 2 hydrogen bonds and G pairs with C with 3 hydrogen bonds.

Front

Which enzyme breaks the hydrogen bonds between nucleotides during DNA replication?

Back

Helicase.

Front

Which enzyme synthesizes the new DNA strand?

Back

DNA polymerase.

Front

What is the difference between leading and lagging strands in DNA replication?

Back

DNA is synthesized continuously on the leading strand and discontinuously on the lagging strand.

Front

Why are there leading and lagging strands in DNA replication?

Back

DNA is antiparallel.

Front

What is the role of DNA polymerase in DNA replication?

Back

DNA polymerase synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

What is the function of primase in DNA replication?

Back

Primase synthesizes a short RNA primer to provide a starting point for DNA synthesis.

Front

What is the significance of the 5' to 3' direction in DNA synthesis?

Back

DNA is always synthesized in the 5' to 3' direction, which is crucial for the addition of nucleotides.

Front

What are Okazaki fragments?

Back

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

Front

What is the function of DNA ligase?

Back

DNA ligase joins Okazaki fragments together to create a continuous DNA strand.