Asu Bio 340 Study Guide 2027 Questions With Answers Graded A+

ASU BIO 340 STUDY GUIDE 2027 QUESTIONS
WITH ANSWERS GRADED A+



◉ d. Denaturation, annealing, extension. Answer: 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. Answer: 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). Answer: 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
d. Adenine pairs with Thymine


◉ d. A phosphate group, a nitrogenous base, a deoxyribose. Answer:
What are the 3 main components of a DNA nucleotide?


a. An alcohol functional group, a nitrogenous base, a ribose
b. An alcohol functional group, a nitrogenous base, a deoxyribose
c. A phosphate group, a nitrogenous base, a ribose
d. A phosphate group, a nitrogenous base, a deoxyribose


◉ d. 95. Answer: At which temperature does a DNA double helix
denature?


a. 15
b. 85