All About DNA

Name: ______________________   Date: ____________

Use the clues to fill in the crossword.

Across

  1. 1. United States telephone engineer who assisted Alexander Graham Bell in his experiments (6)
  2. 5. A painful muscle spasm especially in the neck or back (5)
  3. 8. Center of an atom or a cell (7)
  4. 9. The organic process whereby the DNA sequence in a gene is copied into mRNA (13)
  5. 13. A heterocyclic organic compound with a penetrating odor (10)
  6. 14. A specific sequence of three adjacent nucleotides on a strand of DNA or RNA that specifies (5)
  7. 15. A segment of DNA that is involved in producing a polypeptide chain (plural) (5)

Down

  1. 2. A base found in DNA and derived from pyrimidine (7)
  2. 3. A purine base found in DNA and RNA (7)
  3. 4. A group of organisms sharing a specific genetic constitution (8)
  4. 5. A general term for the research activity that creates a copy of some biological entity (7)
  5. 6. A phosphoric ester of a ___ (plural) (11)
  6. 7. An organism that has characteristics resulting from chromosomal alteration (plural) (9)
  7. 10. The process whereby DNA makes a copy of itself before cell division (11)
  8. 11. Any of various macromolecules composed of ___ chains that are vital constituents of all (11)
  9. 12. A colorless crystalline organic base containing nitrogen (6)