biology 4th

3. the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body
4. a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes
7. thread-like structures located inside the nucleus of animal and plant cells.
10. a change which is a result or consequence of an action or other cause.
12. resulting from or showing the effect of mutation.
15. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
16. relating to genes or heredity.
17. is a nucleic acid present in all living cells that has structural similarities to DNA.
18. the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.

1. Proteins are large, complex molecules that play many critical roles in the body
2. the genetic constitution of an individual organism.
5. large biomolecules that play essential roles in all cells and viruses.
6. an individual animal, plant, or single-celled life form.
8. liable to change.
9. construct or arrange according to a plan; give a pattern or organization to.
11. a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
13. the action or process of mutating.
14. a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.