DNA Structure and Replication

Front

What is the structure of DNA commonly described as?

Back

A double helix.

Front

What are the building blocks of DNA?

Back

Nucleotides.

Front

What are the three components of a nucleotide?

Back

A sugar, a phosphate group, and a nitrogenous base.

Front

What type of bond holds the nitrogenous bases together in DNA?

Back

Hydrogen bonds.

Front

What are the two types of strands in DNA replication?

Back

Leading strand and lagging strand.

Front

What is the role of DNA polymerase in DNA replication?

Back

It synthesizes new DNA strands by adding nucleotides.

Front

What are Okazaki fragments?

Back

Short segments of DNA synthesized on the lagging strand during DNA replication.

Front

What is the function of the phosphate group in a nucleotide?

Back

It forms the backbone of the DNA strand.

Front

Which nitrogenous bases pair together in DNA?

Back

Adenine pairs with Thymine, and Cytosine pairs with Guanine.

Front

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

Back

They indicate the directionality of the DNA strand, which is important for replication.