Biology Fall Review

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Across
  1. 5. Type of bond that holds nitrogen bases together in the middle of a DNA molecule.
  2. 7. Type of cell transport that moves substances from low to high concentration.
  3. 8. Term for a person who has two different alleles.
  4. 12. Cell part that converts the energy in glucose into ATP.
  5. 14. Number of chromosomes in a human gamete cell.
  6. 15. Molecule that carries the code for proteins from the nucleus to the ribosome.
  7. 16. Type of active transport that involves taking materials into the cell through vesicles formed by the cell membrane.
  8. 18. Type of cell formed by meiosis.
  9. 19. A disease-causing agent that lacks ribosomes and can only replicate in a host cell.
  10. 21. Type of mutation where a base, or bases, is removed.
  11. 23. Amino acid coded for by the mRNA codon UUC.
  12. 24. One of two biomolecules that provide energy to the cell.
Down
  1. 1. Mitosis stage where sister chromatids separate.
  2. 2. A protein that speeds up chemical reactions.
  3. 3. Number of daughter cells produced by meiosis.
  4. 4. Mitosis stage where chromosomes lign up on the equator of the cell.
  5. 6. Cell that is more complex than a prokaryotic cell.
  6. 9. Cell that does not have a nucleus.
  7. 10. Stage of the cell cycle when DNA replication occurs.
  8. 11. This disease occurs when cells divide continuously.
  9. 13. The complementary half of this DNA sequence: GACTGA
  10. 17. DNA mutation that occurs when a bases, or bases, are added to the DNA.
  11. 18. Amino acid coded for by the mRNA codon GGU.
  12. 20. Repeating series of events in which a cell grows, copies its DNA, and divides.
  13. 22. The protein "coat" that encloses the genetic material of a virus.