Across
- 3. a living thing, often a very small one
- 9. A characteristic inherited by your relatives
- 10. thread-shaped structures that contains genes
- 11. disease that cause having extra fingers
- 13. different form of a gene
- 15. all the people who are the same age
- 16. trait that is influenced by two or more genes
- 17. outward expression of a trait
- 20. not express when the domiant trait is present
- 21. old hypothesis that explains heritage
- 22. explanation of somenthing based on know facts
Down
- 1. oposite form of recessive
- 2. the smallest living part of an animal or a plant
- 4. light brown spots on the skin, dominant trait
- 5. the child of a person or animal
- 6. an illness
- 7. the father of genetics
- 8. a cell connected with sexual reproduction
- 12. a quality or characteristic of a person
- 14. deoxyribonucleic acid
- 15. genetic make-up of an organism
- 18. section of a chromosome that codes a trait
- 19. the scientific study of genes