Unit 8: Molecular Genetics

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Across
  1. 1. A term describing how DNA strands run in opposite directions.
  2. 3. The enzyme that "unzips" the DNA molecule by breaking the hydrogen bonds.
  3. 5. Non-coding regions of RNA that are removed during the transcription process.
  4. 7. The twisted ladder shape of DNA discovered by Watson and Crick.
  5. 10. The building block of DNA that consists of three subunits: phosphate, ribose sugar, and nitrogenous base.
  6. 12. The molecule that picks up an amino acid and "taxis" it to the ribosome, attaching to the messenger RNA with its anticodon.
  7. 14. A single-stranded molecule that contains the base uracil instead of thymine.
  8. 15. The weak bonds used to connect the nitrogenous base pairs across the two DNA strands.
Down
  1. 2. The process of creating a messenger RNA strand from the template DNA strand, which occurs in the nucleus.
  2. 4. A sequence of 3 messenger RNA bases that codes for a specific amino acid.
  3. 6. The remaining coding regions of RNA that are spliced together.
  4. 8. The new DNA strand created in replication that is constructed continuously in the 5' to 3' direction.
  5. 9. A molecule whose main function is to store and transmit genetic information.
  6. 11. The process of creating an amino acid chain from messenger RNA, occurring on the ribosomes in the cell.
  7. 13. DNA _______ is the enzyme that creates the new DNA strand and moves only in the 5' to 3' direction.