Across
- 4. a step or a stage in a process
- 6. An organism that has two identical alleles for a particular gene.
- 7. The allele that masks the expression of the recessive allele.
- 9. The duplication and splitting apart of chromosomes during cellular division.
- 10. The two cells that result from cell division.
Down
- 1. A structure made up of tiny tubes that attach to the duplicated chromosomes and pull them apart in the anaphase of mitosis.
- 2. An organism that has two different alleles for the same gene.
- 3. Very small structures found in animal cells that produce spindle fibers.
- 5. The step of mitosis where the chromosomes line up across the center of the cell.
- 8. The original cell before it divides.