Chapter Eight

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Across
  1. 3. expression of the genotype creates traits
  2. 7. segment of DNA that controls transcription of structural genes by binding to a repressor protein
  3. 9. inhibits gene expression and decreases protein synthesis
  4. 10. the loss of base pairs
  5. 13. the addition of base pairs
  6. 14. adenine pairs with uracil, guanine pairs with cytosine
  7. 15. turns on gene expression
  8. 16. dsDNA is used to synthesize an RNA molecule
Down
  1. 1. the sum of all gene types
  2. 2. segment of DNA where RNA polymerase initiates transcription of structural genes
  3. 4. groups of three nucleotides in each mRNA that each encode for an amino acid
  4. 5. one base for another pair
  5. 6. set of operator and promoter sites and the structural genes they control
  6. 8. the study of inheritance or heredity of living things
  7. 11. mRNA is used to produce a protein
  8. 12. adenine pairs with thymine, guanine pairs with cytosine
  9. 17. builds up in a cell when glucose is not available