Multiple Choice
The "metabolism first" theory proposes that evolution first took place
A) in RNA, which acted as both genetic material and a catalyst.
B) as chemical reactions that resulted in monomers.
C) in lipids.
D) in the trace elements.
E) in proteins.
Correct Answer:
Verified
Correct Answer:
Verified
Q25: The process by which a RNA nucleotide
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
Q31: The double-helix structure of DNA is the
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
Q104: According to the principle of complementary base