Period+3+DNA+and+RNA+structure+and+terminology+and+mutations+questions+36-45

Christian, Paul, Harrison, John, Gabrielle

36. What does it mean when two strands of DNA are anti-parallel? **//(ANS: C )//** a. They aren't parallel b. They are parallel c. They are parallel but opposite directions d. All of the above

37. What are the base pairing rules? **//(ANS: A )//** a. A-T C-G b. A-A T-T C-C G-G c. A-G C-T d. None of the Above

38. What is the shape of DNA? **//(ANS: D )//** a. Double triangle b. Dibble helix c. Triangular helix d. Double helix

39. What are three parts of a nucleotide? **//(ANS:C )//** a. carbon base, phosphate, sugar b. phosphloride, sugar, nitrogen base c. phosphate, deoxyribose, nitrogen base d. phospholipid, deoxyribose, nitrogen base

40. What are point mutations? **//(ANS: B )//** a. Silent b. Single base change c. Entire sequence shifts d. Lose a base

41. What is a frameshift mutation? **//(ANS: C )//** a. Missence b. Change of an amino acid c. Entire sequence will change/shift d. Single base change

42. Two examples of point mutations. **//(ANS: C )//** a. Insertion and Deletion b. Missence and Insertion c. Silent and Nonsense d. Silent and Deletion

43. What is the purpose of mRNA? **//(ANS: D )//** a. To send texts to the tRNA b. To send messages to the tRNA c. To take the DNA sequence outside of the nucleus d. Both B and C

44. Name a difference between DNA and RNA **//(ANS: B )//** a.DNA can fit through the nucleus b. RNA can fit through the nucleus c. DNA uses U instead of T d. RNA uses U instead of A

45.Which part of DNA contains the instructions to build proteins? **//(ANS: D )//** a.Phosphate b. Deoxyribose c. Hydrogen Bond d. Nitrogen Base