The protein might be unable to function if an error during transcription occurs.
Step-by-step explanation:
During transcription, the mRNA is formed. If the error encountered in the transcription, mRNA formed would be a transient one and would eventually get degraded. Also, during the translation process, the disruption would occur due to incorrect coding sequences and hence the functional protein will not be formed. The resulting protein will get degraded. Such proteins are termed as erroneous proteins.