The building blocks of DNA are:

The nitrogenous bases in DNA are:

In DNA, adenine always pairs with:

The shape of a DNA molecule is described as a:

The backbone of DNA is made of:

Which base is found in RNA but not in DNA?

The sugar in RNA nucleotides is:

The process of copying DNA into mRNA is called:

In transcription, the enzyme responsible for building RNA is:

Where does transcription occur in eukaryotic cells?

Translation takes place in the:

Each set of three bases in mRNA that codes for one amino acid is called a:

The molecule that brings amino acids to the ribosome is:

What is the start codon for protein synthesis?

Which type of RNA forms the core of the ribosome?

DNA replication is described as:

Which enzyme unzips the DNA double helix during replication?

Which enzyme adds new nucleotides to a growing DNA strand?

Which enzyme seals gaps in the sugar-phosphate backbone during replication?

DNA replication occurs during which phase of the cell cycle?

A change in the DNA sequence is called a:

Which type of mutation is most likely to be harmful?

A point mutation involves:

Which of the following mutations does NOT change the amino acid sequence of a protein?

Mutations in body (somatic) cells:

PCR (polymerase chain reaction) is used to:

Gel electrophoresis separates DNA fragments based on:

The genetic code is described as universal because:

Recombinant DNA technology involves:

Which of the following best explains gene expression?