DNA Review Flashcard

Front

In DNA replication, which base pairs with 'T'?

Back

A

Front

What is the shape of DNA?

Back

Double Helix

Front

What are the smaller fragments called that form the lagging strand?

Back

Okazaki fragments

Front

Which group is represented by a circle in a DNA nucleotide?

Back

Phosphate

Front

Why can't DNA leave the nucleus in a eukaryotic cell?

Back

It must be protected from harm

Front

What are the four nitrogenous bases in DNA?

Back

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

Front

What is the function of DNA polymerase in DNA replication?

Back

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

Front

What is the role of helicase in DNA replication?

Back

It unwinds the DNA double helix.

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 and transcription.

Front

What is a mutation in DNA?

Back

A change in the nucleotide sequence of DNA.