Biology vocab

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Across
  1. 3. / deoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosome
  2. 6. / nucleic acid present in all living cells
  3. 9. RNA / a molecular component of a ribosome, the cell's essential protein factory
  4. 10. / a step in protein biosynthesis wherein the genetic code carried by mRNA is decoded to produce the specific sequence of amino acids in a polypeptide chain
  5. 12. splicing / The editing of the nascent precursor messenger RNA transcript into a mature messenger RNA
  6. 13. / A sequence of three adjacent nucleotides located on one end of transfer RNA
  7. 14. base / an organic molecule with a nitrogen atom that has the chemical properties of a base.
  8. 16. / The protein-coding region in the DNA
  9. 18. / a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acid
  10. 19. / a colorless crystalline compound with basic properties, forming uric acid on oxidation.
Down
  1. 1. / an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed
  2. 2. helix / a pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule.
  3. 4. / a colorless crystalline compound with basic properties.
  4. 5. / a sequence of three nucleotides that together form a unit of genetic code in a DNA or RNA molecule
  5. 7. / a virus that parasitizes a bacterium by infecting it and reproducing inside it.
  6. 8. / A noncoding, intervening sequence of DNA within a gene that is transcribed into mRNA but is removed from the primary gene transcript and rapidly degraded during maturation of the RNA product
  7. 10. RNA / Small RNA molecules that carry amino acids to the ribosome for polymerization into a polypeptide
  8. 11. / when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene
  9. 15. RNA / An RNA molecule transcribed from the DNA of a gene, and from which a protein is translated by the action of ribosomes
  10. 17. / an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light mic