Across
- 3. central part of the cell that contains DNA
- 6. the physical trait being expressed (tall, short, red, white)
- 10. type of blood cell that helps the body fight off disease
- 12. the number of chromosomes in a normal human cell
- 13. scientist who studies the atmosphere and weather
- 14. making an exact copy of an organism
- 16. a tool used to predict how traits may be passed on to offspring
- 17. the shape of a strand of DNA
- 18. version of a gene that overshadows the others
- 19. the percentage children are of each of the parents
Down
- 1. a section of DNA that codes for a specific trait
- 2. "the letters" (TT, Tt, tt)
- 4. the blueprint of life
- 5. version of a gene that is ONLY expressed if there are 2 copies (rr)
- 7. any change in the DNA of an organism
- 8. coiled pieces of DNA located inside the nucleus
- 9. scientist who studies atoms, elements and molecules
- 11. scientist who studies all living things
- 15. scientist who studies reptiles and amphibians