DNA Review

Front

What helps bond the nitrogenous bases in DNA?

Back

Hydrogen bonds help bond the nitrogenous bases in DNA.

Front

What type of mutation is shown when one base is replaced by another?

Back

Substitution mutation is when one base is replaced by another.

Front

What components make up the backbone of a DNA molecule?

Back

The backbone of a DNA molecule is made up of deoxyribose sugar and phosphate groups.

Front

Where is the genetic code located in DNA?

Back

The genetic code is located in the nucleotides of DNA.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

Front

What is the structure of DNA?

Back

DNA has a double helix structure, consisting of two strands twisted around each other.

Front

What is the function of DNA?

Back

The function of DNA is to store and transmit genetic information.

Front

What is a nucleotide composed of?

Back

A nucleotide is composed of a phosphate group, a deoxyribose sugar, and a nitrogenous base.

Front

What is the role of the phosphate group in DNA?

Back

The phosphate group forms the backbone of the DNA molecule and connects the nucleotides.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.