DNA Structure

Two strands of nucleotides wound about each other; the shape of DNA.

• helix

• spiral

• double helix

• ladder

A complex molecule containing the genetic information that makes up the chromosomes.

• deoxyribose

• deoxyribonucleic acid (DNA)

• nucleotide

• gene

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

The chemicals that make up the rungs of the DNA ladder.

• deoxyribose

• phosphate

• nitrogen bases

• nucleotides

Nucleotides are made of a molecule of deoxyribose, connected to a phosphate & a nitrogen base. They make up one side of the DNA double helix.

• true

• false

This part of the nucleotide helps hold the DNA structure together.

• base

• deoxyribose

• guanine

• phosphate

Base that pairs with thymine.

• guanine

• cytosine

• adenine

• phosphate

The base that pairs with guanine.

• cytosine

• adenine

• phosphate

• thymine

The sugar found in DNA.

• phosphate

• cytosine

• deoxyribose

• dextrose

The base that pairs with cytosine.

• guanine

• thymine

• phosphate

• adenine

The base that pairs with adenine.

• thymine

• guanine

• cytosine

• phosphate