Informational text about DNA
Understand the Problem
The image displays an informational text about DNA. It covers the structure of DNA, including its double helix shape, the alternating sugar and phosphate units, and the nitrogen bases. It also explains the concept of complementary base pairs (A with T, C with G) and how DNA is copied during replication.
Answer
DNA is a molecule with a double helix shape that contains the genetic code and is the basis of heredity.
DNA, or deoxyribonucleic acid, is a molecule with a double helix shape. It contains the genetic code that is unique to every individual and is the basis of heredity. It's made of sugar and phosphate units, and nitrogen bases - adenine, thymine, cytosine, and guanine.
Answer for screen readers
DNA, or deoxyribonucleic acid, is a molecule with a double helix shape. It contains the genetic code that is unique to every individual and is the basis of heredity. It's made of sugar and phosphate units, and nitrogen bases - adenine, thymine, cytosine, and guanine.
More Information
DNA helps cells make proteins to allow living things to reproduce.
Tips
A common mistake is thinking DNA is only in humans, however it is in almost every living organism.
Sources
- Deoxyribonucleic Acid (DNA) Fact Sheet - genome.gov
- What is DNA?: MedlinePlus Genetics - medlineplus.gov
- Minute to Understanding: What is DNA? - The Jackson Laboratory - jax.org
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