Science

4. During prophase, the threadlike chromatin in the nucleus condenses to form double-rod structures.
5. The stage during which the cell’s nucleus divides into two new nuclei.
8. Hidden whenever the dominant allele is present.
10. A number that describes how likely it is that an event will occur.
12. Genetic makeup, or allele combinations.
13. Each different form of a characteristic, such as stem height or seed color.
14. In the next part of interphase, the cell makes an exact copy of the DNA in its nucleus in a process.
16. The passing of physical characteristics from parents to offspring.
17. An organism that has two different alleles for a trait.
18. The different forms of a gene.
21. Physical appearance, or visible traits.

1. One whose trait always shows up in the organism when the allele is present.
2. A new organism begins to form when egg and sperm join in the process.
3. Chart that shows all the possible combinations of alleles that can result from a genetic cross.
6. The final stage of the cell cycle.- completes the process of cell division.
7. cycle The regular sequence of growth and division that cells undergo.
9. An organism that has two identical alleles for a trait.
11. The first stage of the cell cycle
15. An inheritance pattern.
16. A hybrid organism has two different alleles for a trait.
19. The scientific study of heredity.
20. The factors that control a trait.
21. A purebred organism is the offspring of many generations that have the same trait.