Biology Crossword

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