DNA Replication

Front

What is the lagging strand in DNA replication?

Back

The lagging strand is the DNA strand that is synthesized discontinuously in short segments called Okazaki fragments, moving away from the replication fork.

Front

What does 'antiparallel' mean in the context of DNA structure?

Back

Antiparallel refers to the opposite orientation of the two strands of DNA, where one strand runs 5' to 3' and the other runs 3' to 5'.

Front

In which direction does DNA polymerase synthesize new DNA strands?

Back

DNA polymerase synthesizes new DNA strands in the 5' to 3' direction.

Front

What is the role of primase in DNA replication?

Back

Primase synthesizes short RNA primers that provide a starting point for DNA polymerase to begin DNA synthesis.

Front

What are Okazaki fragments?

Back

Okazaki fragments are short segments of DNA synthesized on the lagging strand during DNA replication, each starting with an RNA primer.

Front

What is the function of helicase in DNA replication?

Back

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

Front

What is the leading strand in DNA replication?

Back

The leading strand is the DNA strand that is synthesized continuously in the same direction as the replication fork.

Front

What is the significance of the 5' and 3' ends of DNA?

Back

The 5' and 3' ends refer to the carbon numbers in the DNA's sugar backbone, indicating the directionality of the DNA strand.

Front

What enzyme is responsible for joining Okazaki fragments?

Back

DNA ligase is responsible for joining Okazaki fragments together to form a continuous DNA strand.

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.