DNA Questions

Question How many pyrimidines and purines in total occur in DNA and RNA? A)2, 2 B)2, 3 C)3, 2 D)4, 1

Question Which of the following are purines? 1. Adenine 2. Cytosine 3. Guanine 4. Thymine A)1, 2 B)1, 3 C)2, 4 D)2, 3

Question Which of the following bases is cytosine? A)B) C)D)

Question Which of the following bases is adenine A) B) C)D)

Question Which of the following bases is only found in DNA? A)Cytosine B)Thymine C)Adenine D)Uracil

Question To which atom(s) of the pyrimidine is the anomeric carbon of a sugar attached? A)1 B)2 C)3 D)4

Question The bond that joins two nucleotides together is called a A)amide bond. B)peptide bond. C)phosphodiester bond. D)hydrogen bond.

Question The base pairs present in DNA are: A)A---C and C---T B)A---C and G---T C)A---U and C---C D)A---T and G---C

Question Which nucleotide sequence is complimentary to the DNA strand AGGTC? A)UCCUG B)TCCAC C)CTTGA D)TCCAG

Question Estimate the guanine content of turtle DNA if adenine = 28.7% and cytosine = 21.3%. A)28.7% B)21.3% C)57.4% D)42.6%

Question What is the start codon for protein biosynthesis? A)UAG B)UAA C)AUG D)UGA

Question The steps of one cycle of PCR (polymerase chain reaction) are in order: A)Denaturation - Annealing - Synthesis B)Annealing - Denaturation - Synthesis C)Annealing - Synthesis - Denaturation D)Denaturation - Synthesis - Annealing