Question

All other factors being equal, the renaturation of the three classes of complementary nucleic acid sequences occurs in what order, from fastest to slowest?

A) DNA-RNA hybrids, RNA-RNA hybrids, DNA-DNA hybrids
B) RNA-RNA hybrids, DNA-DNA hybrids, DNA-RNA hybrids
C) DNA-DNA hybrids, RNA-RNA hybrids, DNA-RNA hybrids
D) DNA-RNA hybrids, DNA-DNA hybrids, RNA-RNA hybrids

Answer 1

The correct order of renaturation of the three classes of complementary nucleic acid sequences, from fastest to slowest, is DNA-RNA hybrids, DNA-DNA hybrids, RNA-RNA hybrids.

Step-by-step explanation:

The correct order of renaturation of the three classes of complementary nucleic acid sequences, from fastest to slowest, is D) DNA-RNA hybrids, DNA-DNA hybrids, RNA-RNA hybrids.

Annealing, which is the formation of hydrogen bonds between the nucleotide base pairs of two single-stranded complementary nucleic acid sequences, occurs in this order because DNA-RNA hybrids have higher stability due to the complementary base pairing between DNA and RNA. DNA-DNA hybrids have lower stability due to differences in base sequence, and RNA-RNA hybrids generally have the lowest stability due to the presence of single-stranded regions and higher likelihood of secondary structure formation.