Biology

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Across
  1. 2. a small fluid-filled bladder sac cyst or vacuole within the body.
  2. 6. endoplasmic reticulum,proteins that are released, or exported, from the cell are synthesized on the rough ER
  3. 7. A segment of DNA that contains instructions for a single trait
  4. 9. apparatus, a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells involved in secretion and intracellular transport.
  5. 10. A single stranded molecule that aids in the replication of DNA.
  6. 12. Process in which part of the nucleotide sequence of DNA is copied into a complementary sequence in RNA
  7. 15. Monomer of nucleic acids that is made up of a 5-carbon sugar a phosphate group and a nitrogenous base
  8. 16. a small dense spherical structure in the nucleus of a cell during interphase
  9. 17. mutation, mutation the shifts the "reading frame: of the genetic message by inserting or deleting a nucleotide
  10. 18. electrophoresis, a technique used to separate DNA fragments according to their size.
  11. 19. A double stranded molecule that determines the codes for traits
  12. 20. messenger RNA type of RNA that carries instructions from DNA in the nucleus to the ribosome
  13. 21. Complex particles that facilitate the orderly linking of amino acids into polypeptide chain
  14. 23. endoplasmic reticulum, collection of enzymes that perform specialized tasks including synthesis of membrane lipids and the detoxification of drugs
  15. 25. group of three nucleotide bases in mRNA that specify a particular amino acid to be incorporated into a protein
Down
  1. 1. transfer RNA type of RNA that carries amino acids to the ribosome
  2. 3. Threadlike structures made of condensed DNA molecules that contains genetic information
  3. 4. Decoding of an mRNA message into a polypeptide chain
  4. 5. A term applied to two molecules that are side by side but run in opposite directions.
  5. 8. a microscopic network of protein filaments and tubules in the cytoplasm of many living cells, giving them shape and coherence
  6. 10. DNA, DNA that has been formed artificially by combining constituents from different organisms.
  7. 11. group of three bases on a tRNA molecule that a complementary to the three bases of a codon of mRNA
  8. 13. a membrane-bound organelle that contains genetic material (DNA) of eukaryotic organisms.
  9. 14. enzyme, an enzyme produced chiefly by certain bacteria having the property of cleaving DNA molecules at or near a specific sequence of bases.
  10. 18. therapy, an experimental technique that uses genes to treat or prevent disease.
  11. 22. change in the genetic material of a cell
  12. 24. mutation, gene mutation in which a single base pair in DNA has been changed