Genetics Ch. 12 - Molecular Genetics

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Across
  1. 2. the coding sequences that remain in the final mRNA
  2. 3. type of RNA that travels from the nucleus to the ribosome
  3. 7. a section of DNA that contains the genes for the proteins needed for a specific metabolic pathway
  4. 8. a copy of the genetic information of DNA
  5. 11. substances which cause mutations
  6. 12. the shape/structure of DNA
  7. 15. base examples are: adenine, guanine, cytosine, and thymine
  8. 16. the process of DNA to RNA to proteins, involves transcription and translation.
  9. 18. what tRNA transports to the ribosome
  10. 19. when parental strands of DNA separate, serve as strands of DNA, and produce DNA molecules that have 1 strand of parental DNA and 1 strand of new DNA
  11. 20. the type of RNA that transports amino acids to the ribosome
  12. 21. a type of mutation that exchanges one base for another
  13. 23. the type of RNA that associates with proteins to form ribosomes in the cytoplasm
  14. 24. the three-base code in DNA or mRNA
Down
  1. 1. sequences that are also called intervening sequences
  2. 4. formed when the phosphate groups in DNA create a negative charge, which attract the DNA to the positively charged histone proteins
  3. 5. the ability of an organism to control which genes are transcribed in repsonse to the environment
  4. 6. the enzyme that catalyzes the addition of appropriate nucleotides to the new DNA strand
  5. 9. the subunits of the nucleic acids that consist of a 5-carbon sugar, a phosphate group, and a nitrogenous base
  6. 10. the first step of protein synthesis
  7. 13. a mutation that involves a chemical change in just one base pair
  8. 14. a permanent change in a cell’s DNA
  9. 17. the nitrogenous base not present in RNA nucleotides
  10. 22. the second step of protein synthesis
  11. 23. mRNA transfers from the nucleus to the ______