DNA Structure and Replication

Front

What type of bond joins nitrogenous bases in DNA?

Back

Hydrogen bonds

Front

What units are repeatedly joined together to form a strand of DNA?

Back

Nucleotides

Front

If a DNA 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

Which nitrogenous base does Guanine bond with?

Back

Cytosine

Front

What is the name of the enzyme that unzips DNA for replication?

Back

Helicase

Front

What are the four nitrogenous bases found in DNA?

Back

Adenine, Thymine, Cytosine, Guanine

Front

What is the structure of DNA commonly described as?

Back

A double helix

Front

What is the role of DNA polymerase in DNA replication?

Back

It synthesizes new DNA strands by adding nucleotides to a growing chain.

Front

What is the difference between the 5' and 3' ends of a DNA strand?

Back

The 5' end has a phosphate group, while the 3' end has a hydroxyl group.

Front

What is the function of the enzyme helicase during DNA replication?

Back

It unwinds and separates the two strands of DNA.