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Each organism has a unique combination of characteristics encoded in molecules of

Each organism has a unique combination of characteristics encoded in molecules of. DNA. The primary function of DNA is to. Store and transmit genetic information. All of the following are true about the structure of DNA except.

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Each organism has a unique combination of characteristics encoded in molecules of

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  1. Each organism has a unique combination of characteristics encoded in molecules of

  2. DNA

  3. The primary function of DNA is to

  4. Store and transmit genetic information

  5. All of the following are true about the structure of DNA except

  6. Short strands of DNA are contained in chromosomes inside the nucleus of a cell • Every DNA nucleotide contains a sugar, a phosphate group, and a nitrogen base • DNA consists of two strands of nucleotides joined by hydrogen bonds • The long strands of nucleotides are twisted into a double helix

  7. Molecules of DNA are composed of long chains of

  8. nucleotides

  9. Which of the following is not part of a molecule of DNA?

  10. ribose

  11. A nucleotide consists of

  12. A sugar, a phosphate group, and nitrogenous base

  13. The part of the molecule for which deoxyribonucleic acid is named the

  14. sugar

  15. Purines and pyridines are

  16. Bases found in nucleotides

  17. Chargaff’s rules, the base-pairing rules, state that in DNA

  18. The amount of adenine equals the amount of thymine • The amount of guanine equals the amount of cytosine • D Both a and b

  19. The base-pairing rules states that the following are base pairs in DNA

  20. Adenine-thymine; guanine-cytosine

  21. ATTG:TAAC::

  22. GTCC:CAGG

  23. The addition of nucleotides to form a complementary strand of DNA

  24. Is catalyzed by DNA polymerase

  25. Which of the following is not true about DNA replication?

  26. Is the responsibility of the complementary DNA mutagens

  27. During DNA replication, a complementary strand of DNA is made for each original DNA strand. Thus if a portion of the original strand is CCTAGCT, then the new strand will be

  28. GGATCGA

  29. The enzymes responsible for adding nucleotides to the exposed DNA template bases are

  30. DNA polymerase

  31. The function of tRNA is to

  32. Transfer amino acids to ribosomes

  33. Which of the following types of RNA carries instructions for making proteins?

  34. mRNA

  35. RNA differs from DNA in that RNA

  36. Is sometimes single-stranded • Contains a different sugar molecule • Contains the nitrogenous base uracil • All of the above

  37. Which of the following is not found in DNA?

  38. uracil

  39. RNA is chemically similar to DNA except that its sugars have an additional oxygen atom, and the base thymine is replaced by a structurally similar base called

  40. Uracil

  41. In RNA molecules, adenine is complementary to

  42. uracil

  43. During translation, a ribosome binds to

  44. mRNA

  45. Each of the following is a type of RNA except

  46. A carrier RNA

  47. During transcription,

  48. RNA is produced

  49. Transcription proceeds when RNA polymerase

  50. Binds to a promoter on a strand of DNA

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