DNA Structure

Front

What is the shape of a DNA molecule?

Back

like a twisted ladder (called a double helix).

Front

What are the building blocks of DNA?

Back

Nucleotides:

-a sugar and phosphate group

• - a base that contains nitrogen (Adenine, Thymine, Cytosine, or Guanine).

Front

What are the base pairing rules in DNA?

(What are the "complementary bases")

Back

Adenine always pairs with Thymine, and Cytosine always pairs with Guanine

A -- T

C -- G

Front

What forms the sides of the DNA ladder?

(the "backbone")

Back

The sides of the DNA ladder are formed by sugar (deoxyribose) and phosphate groups.

Front

What is the function of DNA?

Back

DNA stores genetic information in a sequence (chain) of bases