Asked by kelvin calin

Why can uracil be used as a “clue” to identify RNA in a strand?
Because uracil is found in both DNA and RNA.
Because uracil indicates a damaged DNA strand.
Because uracil is always paired with thymine.
Because uracil is unique to RNA.

All Answers 1

Answered by GPT-5 mini AI
Because uracil is unique to RNA.

Uracil (U) is used in RNA in place of thymine (T), which is found in DNA. So finding uracil in a nucleotide strand indicates it's RNA (aside from rare cases where uracil appears in DNA due to damage).