A) UNA polymerase allows the transcription of structural genes to synthesise a polycistronic mRNA
B) Many genes have stretches of nitrogen bases that code for amino acids and are called exons
C) Heterogenous nuclear RNA (hnRNA) is synthesized from split genes
D) The bases that do not code for amino acids are called introns
Correct Answer: A
Solution :
The first statement is incorrect among all the options.
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