Across
- 4. two different alleles
- 5. piece of DNA that provides the instructions to make a certain protein
- 7. group of organisms that are closely related and can mate to reproduce fertile offspring.
- 11. all of an organism's genetic material
- 13. trait that allows an organism to better survive and reproduce in its environment.
- 14. variety of living things in an ecosystem
- 16. organisms that get their energy by eating other living things or once-living resources
- 18. allele that is not expressed unless two copies are present
- 21. two organisms fight for the same limited resources
- 22. study of biological inheritance patterns
- 23. characteristic that is inherited
- 25. genetic makeup (alleles)
- 27. organisms that make their own food
- 28. supplies energy to the cell
Down
- 1. physical characteristics
- 2. all of the chemical processes that build up or break down materials
- 3. two of the same alleles
- 5. sugar molecule
- 6. an individual that does not have the symptoms of a recessive disease but can pass the recessive allele for the disease to offspring.
- 8. the process of change, in which new species develop from preexisting species over a long period of time.
- 9. all the individuals of a species that live in the same area
- 10. molecule made of amino acids that build muscles, speed up reactions, transport molecules
- 12. maintenance of constant internal conditions in an organism
- 15. any individual living thing
- 17. all the living and nonliving things in a given area
- 19. sperm and egg joining together
- 20. allele that is always expressed
- 21. basic unit of life
- 24. organisms that break down dead organic matter into simpler compounds
- 26. study of life
