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ASU BIO 340 Exam 3 Recitation Questions and Complete Answers Graded A+
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ASU BIO 340 Exam 3 Recitation Questions and Complete Answers Graded A+
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ASU BIO 340 Exam3 Recitation
Questions and
Complete Answers
Graded A+
Denning [Date] [Course title]
, d. all of the above - Correct Ans: RNA differs from DNA in that it:
a. is usually found as a single-stranded molecule in cells
b. contains uracil
c. contains ribose sugar
d. all of the above
d. Denaturation, annealing, extension - Correct Ans: The correct order of steps in a PCR cycle is:
a. Extension, denaturation, annealing
b. Annealing, extension, denaturation
c. Annealing, denaturation, extension
d. Denaturation, annealing, extension
c. Amplify a small amount of DNA sequence - Correct Ans: The goal of the polymerase chain reaction
(PCR) is to:
a. Sequence DNA
b. Digest bacterial plasmids
c. Amplify a small amount of DNA sequence
d. Cleave DNA molecules
b. Two strands of DNA double helix are held together by covalent bonds
(hydrogen bonds, not covalent bonds) - Correct Ans: Which of the following is incorrect?
a. Cytosine pairs with Guanine
b. Two strands of DNA double helix are held together by covalent bonds
c. Nucleotides in DNA consist of deoxyribose sugar, phosphate group and a nitrogenous base
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