Science

4. The different forms of a gene.
5. An inheritance pattern.
6. Each different form of a characteristic, such as stem height or seed color.
11. The factors that control a trait.
12. In the next part of interphase, the cell makes an exact copy of the DNA in its nucleus in a process.
14. One whose trait always shows up in the organism when the allele is present.
15. An organism that has two identical alleles for a trait.
17. A number that describes how likely it is that an event will occur.
19. Physical appearance, or visible traits.
20. A purebred organism is the offspring of many generations that have the same trait.
21. The passing of physical characteristics from parents to offspring.

1. Chart that shows all the possible combinations of alleles that can result from a genetic cross.
2. Genetic makeup, or allele combinations.
3. cycle The regular sequence of growth and division that cells undergo.
5. The final stage of the cell cycle.- completes the process of cell division.
7. During prophase, the threadlike chromatin in the nucleus condenses to form double-rod structures.
8. The stage during which the cell’s nucleus divides into two new nuclei.
9. A new organism begins to form when egg and sperm join in the process.
10. The first stage of the cell cycle
12. Hidden whenever the dominant allele is present.
13. An organism that has two different alleles for a trait.
16. The scientific study of heredity.
18. A hybrid organism has two different alleles for a trait.