Flashcard: DNA Structure and Replication

Front

What is the shape of DNA?

Back

Double helix.

Front

What is the difference in DNA between prokaryotic and eukaryotic DNA?

Back

Prokaryotic DNA is circular and not contained inside the nucleus. Eukaryotic DNA is elongated and inside the nucleus.

Front

Which enzyme fixes the Okazaki fragments in the lagging strand?

Back

Ligase.

Front

If a strand reads: 3' A A A T T T C 5', what would the matching strand read?

Back

5' T T T A A A G 3'.

Front

Who made the first model of DNA's double helix structure?

Back

Watson and Crick.

Front

What are the building blocks of DNA?

Back

Nucleotides.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), Guanine (G).

Front

What is the role of DNA polymerase?

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.

Front

What is the significance of complementary base pairing in DNA?

Back

Complementary base pairing ensures accurate replication and transcription of genetic information.