Chapter 7 Genetics Review

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Across
  1. 2. When a DNA strand makes an identical copy of itself, it is known as DNA _____________________.
  2. 4. __________________ ______ _______________ discovered the shape of DNA (two names).
  3. 8. Mutations can be ___________, harmful, or neither.
  4. 10. What organelle in the cytoplasm helps read RNA code and produce protein?
  5. 11. What is the term for the group of nitrogen bases that code for an amino acid?
  6. 12. This type of selective breeding occurs when organisms with different traits are crossed.
  7. 14. What does the "t" stand for in "tRNA"?
  8. 17. How many nitrogen bases code for a single amino acid?
  9. 18. A DNA strand is in the shape of a ______________ _________________.
  10. 19. The process in which proteins are made is called _____________ ___________________.
  11. 21. What does the "m" stand for in "mRNA"?
  12. 22. Proteins are made up of _______________ _________________.
  13. 24. In RNA, guanine matches with __________________.
  14. 25. The term used for a change in DNA or chromosomes is ______________.
  15. 26. In DNA replication, adenine always matches with __________________.
  16. 27. Selective breeding include hybridization and __________________.
  17. 28. In DNA replication, cytosine always matches with __________________.
Down
  1. 1. When a nitrogen base is lost during transfer, the mutation is considered a ______________.
  2. 3. When a nitrogen base is gained during transfer, the mutation is considered an ______________.
  3. 5. A process used to treat genetic disorders is called gene _____________.
  4. 6. DNA coils up and makes _______________ that are found in the nucleus of the cell.
  5. 7. Genes from one organism are transferred to another organism.
  6. 9. In RNA, adenine matches with __________________.
  7. 13. Genetic code is determined by the order of the nitrogen _______________ __________________.
  8. 15. Because of the way the nitrogen bases pair up, the ______________________ of the bases in each new DNA strand exactly matches the original DNA strand.
  9. 16. Two organisms that share the exact same DNA are considered ______________.
  10. 18. Cancer is a result of cells ________________ uncontrollably.
  11. 20. When a nitrogen base is accidentally swapped out for another nitrogen base during replication, it is considered a _______________ mutation.
  12. 23. What would the complementary strand of the DNA molecule be if the strand was: AGCTTAGCCT