Bellringer: DNA Structure

Front

What is a nucleotide composed of?

Back

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

Front

Why is DNA important?

Back

DNA serves as the blueprint for traits of all living things.

Front

Why don't we all have the same traits?

Back

The sequence of nitrogenous bases is different for each person.

Front

What best describes a DNA molecule?

Back

A DNA molecule is best described as a double helix.

Front

What are nucleotides made up of?

Back

Nucleotides are made up of a sugar, a phosphate, and a nitrogenous base.

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 function of DNA?

Back

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

Front

What is the structure of DNA?

Back

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

Front

What is the role of the sugar in a nucleotide?

Back

The sugar in a nucleotide connects the phosphate group and the nitrogenous base.

Front

What is complementary base pairing?

Back

Complementary base pairing refers to the specific pairing of nitrogenous bases: adenine pairs with thymine, and cytosine pairs with guanine.