What is the relationship between DNA and genes?

Expert Answers

An illustration of the letter 'A' in a speech bubbles

Deoxyribonucleic acid, or DNA is the material that is located in the cell's nucleus that makes up the chromosomes and genes. Its molecule is in the shape of a double helix. The arrangement of nitrogenous bases in DNA determines an organism's traits. Every three bases is a triplet and codes...

Unlock
This Answer Now

Start your 48-hour free trial to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Start your 48-Hour Free Trial

Deoxyribonucleic acid, or DNA is the material that is located in the cell's nucleus that makes up the chromosomes and genes. Its molecule is in the shape of a double helix. The arrangement of nitrogenous bases in DNA determines an organism's traits. Every three bases is a triplet and codes for a particular amino acid. Amino acids joined together form a polypeptide and polypeptides make up proteins. Each gene, a distinct segment of DNA codes for a different protein. Proteins are important molecules as they are structural parts of an organism, can be enzymes or hormones. If a gene has a mutation, the protein may have limited or no function. This can cause a disease or death in an organism.

Approved by eNotes Editorial Team