Biology

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Across
  1. 2. variable - affect by other variables
  2. 4. - more than one code for the same amino acid
  3. 6. reactions - exothermic reactions which break down large molecules and supply energy
  4. 7. Cloning - isolating and making a copy of the gene
  5. 9. - different versions of the gene (one from each parent)
  6. 11. - number of same species in a specific area
  7. 13. - all the same type of atom
  8. 14. - the study of life
  9. 15. reactions - endothermic reactions which build up large molecules are require energy
  10. 18. - all the populations in the same area
  11. 19. roles
  12. 20. - similar ecosystems with similar environments
  13. 23. thing - organism
  14. 25. allele - expressed; Recessive allele - hidden
  15. 28. - serve as chemical messengers and have
  16. 29. replication - make a copy of the chromosomes
  17. 31. - different allele from each parent
  18. 32. reaction
  19. 33. - alleles inherited from parent
  20. 35. - each codon codes for only one amino acid
Down
  1. 1. - science of heredity
  2. 3. - all living things use the same code
  3. 5. - part of Earth where life exists; includes water, land and air
  4. 8. energy - energy is required to start a
  5. 10. - abiotic and biotic factors in an area
  6. 12. Chain Reaction - makes many copies of the DNA segment
  7. 16. - same allele from each parent
  8. 17. - expression of the genes
  9. 21. bonds - keep water in the liquid phase even though it shouldn’t be at room temperature
  10. 22. - fat or oil
  11. 24. variable - changed by the experimenter
  12. 26. Cloning - isolating and making a copy of the gene
  13. 27. - speed up reactions in cells, without them most life would die
  14. 30. - electrical charge difference between areas of molecule
  15. 34. - location of gene on the chromosome
  16. 36. - sum of all the reactions within an organism