1. dna 2
Cole Cuchna Per 3 Molecule of the Month: DNA The "thread of life", is deoxyribonucleic acid, otherwise known as DNA. It is the spiral shaped molecule found in the nucleus of cells. Scientists have known since 1952 that DNA is the basic substance of heredity. This ... more are being uncovered weekly. Many environmental factors, some physical, other's chemical, can alter the structure of a DNA molecule. A mutation occurs when such alterations lead to a permanent change in the base sequence of a DNA molecule. Mutations result in an inherited change in a protein synthesis. DNA is damaged by expo...
- Word Count: 665
- Approx Pages: 3
- Grade Level: High School