Across
- 3. Any of several forms of a gene, usually arising through mutation, that are responsible for hereditary variation
- 4. When two alleles for a trait are equally expressed with neither being dominant or recessive. No blending occurs
- 6. The physical expression of a trait
- 10. An organism that has inherited a recessive allele for a genetic trait but does not express that trait
- 12. When an individual carries two different alleles for a specific trait
Down
- 1. Expression of an allele found on the X chromosome
- 2. The failure of homologous chromosomes to separate normally during nuclear division
- 5. The process of producing offspring by mating two individuals that come from different breeds, varieties, or species
- 7. When a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene
- 8. The offspring of true-breeding plants
- 9. The genetic makeup of the individual
- 11. The genetic material of an organism including all of the genes