DNA Structure

Front

What is a nucleotide composed of?

Back

A nucleotide is composed of a phosphate group, a sugar (deoxyribose in DNA), and a nitrogenous base.

Front

What type of bond forms between base pairs in DNA?

Back

The weak bonds between base pairs in DNA are hydrogen bonds.

Front

Which base pairs with Cytosine in DNA?

Back

Guanine bonds with Cytosine.

Front

What are Cytosine, Thymine, and Uracil classified as?

Back

Cytosine, Thymine, and Uracil are classified as pyrimidines, which have a single ring structure.

Front

What are the two categories of nitrogenous bases in DNA?

Back

The two categories of nitrogenous bases in DNA are purines (Adenine and Guanine) and pyrimidines (Cytosine and Thymine).

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 provides the backbone for the DNA structure and connects to the phosphate and nitrogenous base.

Front

What is the difference between purines and pyrimidines?

Back

Purines have a double ring structure (Adenine and Guanine), while pyrimidines have a single ring structure (Cytosine, Thymine, and Uracil).

Front

What is the function of DNA?

Back

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

Front

How do base pairs bond in DNA?

Back

Base pairs bond through hydrogen bonds: Adenine pairs with Thymine (2 hydrogen bonds) and Guanine pairs with Cytosine (3 hydrogen bonds).