Genetic and Heredity Yer

4. rod-shaped structures found in the nucieus of every cell in an organism
6. a molecule found in the cell nucless that encodes genetic information
7. a segment of DNA that determines or helps to determine a trait
9. a single time an experiment is conducted
10. a characteristic of an organism
12. Dominance a condition in which neither of the two genes in a gene pair masks the other
14. the scientific study of heredity
15. allele an allele that is always expressed when it is present
16. allele an allele that is not expressed when the dominant allele is present lowercase such as t
19. the genetic makeup of an organism
20. the offspring of genetically different parents.
21. one of two or more forms that a gene could take

1. the passage of genetic material from parents to offspring
2. having two alleles that are the same
3. a scientist who studies heredity
4. a pattern of inheritance in which the phenotypes of both alleles inherited for a trait are clearly expressed
5. Mendel Father of Genetics
8. having two alleles that are different
11. the physical appearance of an organism
13. square a diagram that shows the possible offspring of two parents
17. the passage of genetic material from parents to offspring
18. the likelihood that a specific event will occur