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Science DNA 8th VJ
Vocabulary
| Term | Definition |
|---|---|
| DNA | Made from nucleic acid and holds the code that makes up living things. |
| Chromosone | Tightly coiled strands of DNA found in the cells. All living things have a specific number of chromosomes; humans have 46 chromosomes (23 pairs), and get half from mom and the other half from dad |
| Trait | A characteristic belonging to a population or organism. |
| Gene | Part of a chromosome that is inherited from the parent(s) and determines some of an organism’s characteristics. |
| Protein | Made from a chain of amino acids and sometimes referred to as the building blocks of life. Proteins have specific shapes (structure) and perform different tasks (functions) in the body |
| Variation of Traits | The differences that occur in the same trait within a population. Variations happen randomly when DNA is passed from parent to offspring and explain why siblings with the same parents do not look exactly alike. |
| E. Coli | A bacteria that is found in the digestive track of humans and other animals that can reproduce quickly (about every 20 minutes). |
| Mutation | A change in genetic material (DNA). |
| Forensic Scientist | A scientist who works with collecting and analyzing evidence, aiding in crime solving. |
| Virologist | A scientist who studies viruses. Viruses are nonliving things that contain DNA but cannot reproduce by themselves; to reproduce viruses need a host cell. |