Molecular Genetics

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Across
  1. 2. section of DNA that contains the genes for proteinsfor a specific metabolic pathway.
  2. 6. a change in the DNA sequence of an organism
  3. 9. coding sequences that remain in the final mRNA.
  4. 12. micrograph in which the pairs of homologous chromosomes are arranged in decreasing size.
  5. 13. regulation,The ability of an organism to control which genes are transcribed in response to the enviroment.
  6. 15. ligase,The enzyme that connects the okazaki fragments.
  7. 17. which cause mutations.
  8. 18. polymerase,The enzyme that catalyzes the addition of appropriate nucleotides to the new DNA strand.
  9. 19. genes,A series of genes that controls the organs and tissues that develop in various parts of an embryo.
  10. 21. the process of making an exact copy of something.
  11. 24. nucleic acid simaliar to DNA. However it contains the sugar ribose, and uracil replaces thymine, usually single stranded.
  12. 25. a base, a sugar, and a phosphate.
Down
  1. 1. division in which sister chromatids fail to separate properly.
  2. 3. three base code in DNA or mRNA.
  3. 4. RNA,(mRNA) Long strands of RNA nucleotides that are formed complementary to one strand of DNA.
  4. 5. interference,A process by which a special double-stranded RNA initiates the breakdown a complementary mRNA, blocking gene expression.
  5. 7. RNA,(tRNA) smaller segments of RNA nucleotides that transport amino acids to the ribosome.
  6. 8. helix,Twisted ladder shape, formed by two strands of nucleotides twisted around each other.
  7. 10. change in the DNA sequence of a cell.
  8. 11. the use of biology to develop new products, methods and organisms intended to improve human health and society.
  9. 14. a molecule that contains the genetic code that is unique to every individual.
  10. 16. polymerase,An enzyme that regulates RNA synthesis, binds to a specific section where mRNA will be synthesized.
  11. 20. helicase,An enzyme which is responsible unwinding and unzipping the double helix.
  12. 22. noncoding, intervening sequence within a eukaryotic gene.
  13. 23. synthesis,the process by which amino acids are linearly arranged into proteins through the involvement of ribosomal RNA, transfer RNA, messenger RNA, and various enzymes.