DNA Structure and Replication

Front

What enzyme is responsible for adding the free nucleotides to the replicating DNA?

Back

DNA polymerase

Front

Which type of bond joins nitrogenous bases in DNA?

Back

Hydrogen bonds

Front

What is the term for DNA replication that involves reusing the old, or parent, DNA strand?

Back

Semi-Conservative

Front

What is the shape of DNA?

Back

Double helix (twisted ladder)

Front

What enzyme unwinds and unzips DNA during replication?

Back

DNA Helicase

Front

What are the building blocks of DNA?

Back

Nucleotides

Front

What are the three components of a nucleotide?

Back

A phosphate group, a sugar (deoxyribose), and a nitrogenous base.

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 ligase in DNA replication?

Back

DNA ligase joins Okazaki fragments on the lagging strand.

Front

What is the function of DNA helicase?

Back

DNA helicase unwinds the double helix and separates the two strands of DNA.