Thymine is used in replication, while uracil is used in transcription is the option which differs DNA replication from DNA transcription.
Explanation:
In DNA thymine forms double bond with adenine while in RNA thymine is replaced by uracil and gets paired with adenine. Uracil requires less energy in its production. Uracil has many functions in the body as it helps in synthesis of many enzymes in the body by forming bonds with phosphates and ribose sugar.
Step-by-step explanation: