Biology

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Across
  1. 3. three-base sequence on messenger RNA that codes for a single amino acid
  2. 5. line up at the equator.
  3. 6. contains digestive enzymes to break down foreign bodies or dead cells
  4. 10. another name of a protein
  5. 11. four chromatids together AKA homologous chromosomes or pairs
  6. 12. most chemical reactions happen here
  7. 13. half number of chromosomes
  8. 15. Area where the chromatids of a chromosome are attached
  9. 17. microtubules that connect to spindle fibers
  10. 18. makes protein
  11. 20. Body cells
  12. 21. the sugar included in a nucleotide building block of RNA.
Down
  1. 1. Structures found in the nucleus, contains DNA
  2. 2. chromosome that codes for body cells or contains gene for body cells
  3. 4. the process of making mRNA from DNA.
  4. 7. A unicellular organism that lacks a nucleus and membrane bound organelles
  5. 8. Male chromosome pair
  6. 9. located at end of chromosome-protects chromosomes
  7. 14. sperm and egg combined
  8. 16. metaphase II
  9. 19. process of making sperm or egg