Across
- 2. the descendants of a person, animal, or plant
- 7. a tool scientists use to investigate the possible combinations of genetic crosses
- 8. the allele that masks the expression of the recessive allele
- 9. the physical characteristics of an organism
- 10. when an organism has two identical alleles for a particular gene
- 11. the allele whose expression is masked by the dominant allele
Down
- 1. the parental generation in a breeding
- 3. the first generation of offspring from a breeding
- 4. different forms of a gene
- 5. the genetic makeup of an organism
- 6. when an organism has two different alleles for the same gene