Over time, DNA replaced RNA as the primary carrier of genetic information, and the chemical stability of DNA is believed to be the key reason for this. Which attribute of DNA is the reason behind its chemical stability?
A) DNA lacks a free hydroxyl group on the 2'-carbon atom of its sugar.
B) Unlike RNA, DNA is usually double stranded.
C) DNA does not usually form hairpin loops.
D) One of the two pyrimidines found in DNA does not involve uracil.
E) DNA contains thymines, which make it more chemically stable.
Correct Answer:
Verified
Q2: Whereas the nucleotide strand used for transcription
Q3: The discovery of ribozymes led to the
Q4: In eukaryotes, tRNAs are transcribed in:
A) the
Q5: In a transcription reaction, two phosphate groups
Q6: Where are promoters usually located?
A) upstream of
Q7: Which of the following is a sequence
Q8: Which of the following statements is NOT
Q9: What types of bonds are created between
Q10: Which of the following types of RNA
Q11: _ probably began the evolution of life
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