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TEAM COMPETITION

TEAM COMPETITION. A Review for the TEST over Unit 3a: The Structures and Functions of DNA and RNA. 1 point round. TRUE or FALSE: Short strands of DNA are contained in the chromosomes inside the nucleus of a cell. FALSE – long strands of DNA make up chromosomes. TRUE or FALSE:

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TEAM COMPETITION

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  1. TEAM COMPETITION A Review for the TEST over Unit 3a: The Structures and Functions of DNA and RNA

  2. 1 point round

  3. TRUE or FALSE: Short strands of DNA are contained in the chromosomes inside the nucleus of a cell

  4. FALSE – long strands of DNA make up chromosomes

  5. TRUE or FALSE: Every DNA nucleotide contains a sugar, a phosphate group, and a nitrogen base

  6. TRUE:DNA consists of two strands of nucleotides joined by hydrogen bonds

  7. TRUE or FALSE:The long strands of nucleotides are twisted into a double helix in both DNA and RNA

  8. FALSE – only in DNA do you see a double helix

  9. Molecules of DNA are composed of long chains of _____________

  10. nucleotides

  11. What name is given to the entire molecule shown in the diagram?

  12. nucleotide

  13. 2 point round

  14. The amount of guanine in an organism always equals the amount of ___________

  15. cytosine

  16. Finish this analogous relationship: adenine : thymine :: _____: _____

  17. guanine : cytosine

  18. Which enzyme helps to join nucleotides to form a complementary strand of DNA?

  19. DNA polymerase

  20. TRUE or FALSE:Complete DNA replication must occur before a cell can divide

  21. TRUE – you need two identical DNA molecules to make two identical cells

  22. TRUE or FALSE:In DNA replication, two complementary strands are duplicated.

  23. False – only one complementary strand is created

  24. 3 point round

  25. TRUE or FALSE:In DNA replication, the double strand unwinds and unzips while it is being duplicated

  26. True – replication occurs along the DNA as it unzips

  27. TRUE or FALSE:The DNA replication process is aided by enzymes called DNA mutagens

  28. False – polymerase, helicase, and ligase help duplicate the DNA molecule

  29. Which enzyme is responsible for joining nucleotides to the exposed DNA template bases?

  30. polymerases

  31. TRUE or FALSE:RNA differs from DNA in that RNA is single-stranded

  32. True

  33. TRUE or FALSE:RNA differs from DNA in that RNA contains a different sugar

  34. True – RNA contains the sugar ribose

  35. 4 point round

  36. TRUE or FALSE:RNA differs from DNA in that RNA contains the nitrogen base thymine

  37. False – RNA contains the nitrogen bases adenine, uracil, guanine, and cytosine

  38. Which nitrogen base is NOT found in DNA?

  39. uracil

  40. Which nitrogen base is only found in DNA?

  41. thymine

  42. DNA is chemically similar to RNA except that its sugars have lost a(n) __________ atom

  43. oxygen

  44. RNA is chemical similar to DNA except that the base thymine is replaced by the base called ___________.

  45. uracil

  46. 5 point round

  47. The function of rRNA is to help join _______________ together in the ribosome.

  48. amino acids

  49. Each nucleotide triplet in mRNA that specifies a particular amino acid is called a(n) ________

  50. codon

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