Multiple Choice
The double-helix structure of DNA is the result of
A) complementary base pairings.
B) purines bonding with pyrimidines.
C) the phosphodiester bonds between deoxyribose and phosphate.
D) hydrogen bonding of the two complementary polynucleotide strands.
E) ionic bonding of base pairs.
Correct Answer:

Verified
Correct Answer:
Verified
Q26: Examination of ice from Mars suggests that<br>A)
Q27: Life<br>A) may have originated outside Earth.<br>B) required
Q29: The Miller-Urey experiment showed that in any
Q30: The "metabolism first" theory proposes that evolution
Q32: Ribose and deoxyribose are both found in
Q33: Adenine and guanine are classified as _.
Q34: Complementary base pairing is due to the<br>A)
Q35: Which of the following statements about protocells
Q36: Closely related living species should have _
Q104: According to the principle of complementary base