science

3. refers to exposures to substances (such as pesticides or industrial waste)
4. a trait that will appear in the offspring if one of the parents contributes it
6. the production of offspring by a sexual or asexual process.
7. (in informal use) a unit of heredity which is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
9. the study of heredity and the variation of inherited characteristics.
10. has two different alleles of a particular gene or genes.
11. the genetic constitution of an individual organism.
12. a recessive trait or gene.
13. a thing made by combining two different elements; a mixture.
14. the record of descent of an animal, showing it to be purebred.

1. the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
2. a dominant trait or gene
5. has two identical alleles of a particular gene or genes.
6. a trait that must be contributed by both parents in order to appear in the offspring.
8. one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
14. (of an animal) is bred from parents of the same breed or variety.