Across
- 2. The genetic makeup of an organism.
- 4. An allele that expresses its trait even if only one copy is present.
- 7. A physical trait of an organism determined by genetic factors.
- 8. A type of cell division that reduces chromosome number by half.
- 9. The first cell formed after fertilization.
- 13. Different forms of a gene.
- 14. A genotype with two different alleles.
Down
- 1. A cell with two complete sets of chromosomes.
- 2. A reproductive cell (sperm or egg).
- 3. A chart showing the number and appearance of chromosomes.
- 5. A genotype with identical alleles.
- 6. An allele that is expressed only when two copies are present.
- 10. A unit of heredity passed from parent to offspring.
- 11. Differences in genetics and/or phenotypes.
- 12. A cell with one complete set of chromosomes.