Biology Crossword

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Across
  1. 3. group, a chemical compound
  2. 4. marker, alleles that produce detectable phenotypic differences useful in genetic analysis
  3. 7. chain reaction, the technique used by biologists to make many copies of a particular gene
  4. 10. pairing, any of the pairs of nucleotides connecting complementary strands of DNA or RNA
  5. 12. a group of three nucleotide bases in mRNA that specify a particular amino acid to be incorporated into a protein
  6. 15. enzyme, an enzyme that cuts DNA at certain recognition points
  7. 17. polymerase, enzyme that links together chain of RNA nucleotides during transcription
  8. 19. process by which the sequence of bases of an mRNA is converted into the sequence of amino acids of a protein
  9. 21. RNA that combines with proteins to form ribosomes
  10. 22. DNA, genetically engineered DNA that contains DNA from more than one species or organism
  11. 23. an organism or cell that possess one or more genes from another species
  12. 24. the process of copying DNA prior to cell division
  13. 26. a nucleotide that pairs with Cytosine
  14. 27. type of RNA that carries each amino acid to a ribosome during protein synthesis
  15. 28. RNA that carries instructions for the assembly of amino acids into proteins from DNA to the rest of the cell
  16. 29. a nucleotide that pairs with Adenine
Down
  1. 1. Rule, rule that states that DNA from any cell should have a 1:1 ratio of the nucleotide bases
  2. 2. Therapy, the replacing of normal genes in place of missing or defective ones
  3. 5. a nucleotide that pairs with Guanine
  4. 6. a sugar derived from ribose
  5. 8. small circular pieces of DNA located in the cytoplasm of many bacteria
  6. 9. using science to solve crimes
  7. 11. a group of three nucleotide bases in tRNA that are complementary to the three bases of a codon of mRNA
  8. 13. modified, intentionally manipulating genes to get a specific outcome
  9. 14. synthesis of an RNA molecule from a DNA template
  10. 16. single-stranded nucleic acid that contains the sugar ribose
  11. 18. a nucleotide that pairs with Thymine
  12. 20. polymerase, principal enzyme involved in DNA replication
  13. 25. an organism or cell that is the result of asexual reproduction