Across
- 1. A structure made of DNA, found in the nucleus.
- 3. A long molecule that carries genetic information.
- 7. Having two different alleles for a trait.
- 8. A section of DNA that codes for a specific characteristic.
- 9. An allele that is expressed even if only one copy is present.
- 10. The physical characteristics shown by an organism.
Down
- 2. Having two identical alleles for a trait.
- 4. A version of a gene.
- 5. The combination of alleles an organism has.
- 6. An allele that is expressed when two copies are present.