AP Biology: DNA Replication

Front

What does 'semi-conservative' mean in DNA replication?

Back

After DNA replication, each strand contains one side that is a parental strand and the other side is a daughter strand.

Front

Which enzyme synthesizes the leading strand during DNA replication?

Back

DNA Polymerase synthesizes the leading strand.

Front

Which enzyme is needed to start DNA replication?

Back

Helicase is needed to start DNA replication.

Front

What is a primer in DNA replication?

Back

A primer is a short stretch of RNA that is used to start a complementary strand of DNA during replication.

Front

What is the complementary strand of 3'-ATTCG-5'?

Back

5'-TAAGC-3'.

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 helicase in DNA replication?

Back

Helicase unwinds the DNA double helix, separating the two strands to allow replication.

Front

What are Okazaki fragments?

Back

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

Front

What is the difference between the leading and lagging strands?

Back

The leading strand is synthesized continuously, while the lagging strand is synthesized in short segments (Okazaki fragments).

Front

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

Back

DNA strands are synthesized in the 5' to 3' direction, meaning nucleotides are added to the 3' end of the growing strand.