Across
- 1. mendel's name for a specific trait that appeared in the first generation
- 5. exchange of chromosomal segments between a pair of homologous chromosomes during prophase I of meiosis
- 8. observable characteristic that is expressed as a result of an allele pair
- 9. an alternative form that a single gene may have for a particular trait
Down
- 2. permanent change in a cell's DNA
- 3. mendel's name for a trait that is hidden in the first generation
- 4. an organism's allele pairs
- 6. science of heredity
- 7. functional unit that controls inherited trait expression that is passed on from one generation to another generation