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Across 2. In DNA, adenine always bonds with 5. In RNA, which base replaces thymine 6. A symbiotic relationship in which both species benefit from the relationship 10. A term used to refer to an organism that has two different alles for the same trait 12. A symbiotic relationship in which one organism lives in or on another organism and consequently harms it 18. The process in which part of the nucleotide sequence of DNA is copied into a complimentary sequence in RNA 20. An organism whose cells contain a nucleus 21. Diffusion of water through a semi-permeable membrane 24. The genetic make-up of an organism

Down 1. In DNA, guanine always bonds with 3. The place in the cell where trascription occurs 4. The place in the cell where translation occurs 7. The copying process by which a cell deplicates its DNA 8. A symbiotic relationship in which one member of the association benefits and the other is neither helped or harmed 9. Process in which plants use light energy to convert H2O and CO2 into O2 and sugars 10. An organism that obtains energy from the food it consumes 11. Process in which a protein is made from mRNA 13. An organism the use's the suns energy to produce its own food 14. A term used to refer to an organism that has two identical alleles for a particular trait 15. The physical characteristic of an organism 16. Molecules move from an area of high concentration to an area of lower concentration 17. An organism whose cells lack a nucleus 19. A change in a DNA sequence that affects genetic information 22. Deoxyribose is another name for what 23. Three letter block of information