Monday, 27 September 2021

TRANSCRIPTION UNIT OF GENE

A gene is a part of DNA which stores information to make an RNA or a protein .

Cistron is a segment of DNA which codes for a polypeptide chain .

The structural gene that has one transcription unit , it is called monocistronic .

The structural gene that has make transcription unit , it is called polycistronic .

The monocistronic structural genes have interrupted coding sequences in eukaryotes .

The coding sequence is called exons and the non coding or intervening sequences are called introns .

The introns do not appear in the final product of mRNA . 

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