Answer to Question #157677 in Biology for Anas Bajbouj

Question

Part I; Structure of DNA

 

Describe the following terms as they relate to the structure of DNA

 

 

i) Double Helix

 

 

 

 

 

 

Answer 1

The double helix of DNA is the description of the secondary structure of a DNA molecule. It consists of two strands that wind around each other. Each strand has a backbone made of deoxyribose and phosphate groups. Each deoxyribose is attached to one of four bases: adenine, cytosine, guanine, or thymine. The two strands are held together by hydrogen and sticking bonds between the bases. These interactions stabilize the DNA double helix.