Assertion : Eukaryotic sequences are split or interrupted sequences.\ Reason : Eukaryotic transcrip

Question

Assertion : Eukaryotic sequences are split or interrupted sequences.\ Reason : Eukaryotic transcripts possess extra nonfunctional segments called introns.\

Professor PC Thomas Classes · Answer

(a) : In eukaryotes, the monocistronic structural genes have interrupted coding sequences, i.e., the genes in eukaryotes are split. The coding sequences or expressed sequences are defined as exons. They are said to be those sequence that appear in mature or processed RNA. The exons are interrupted by introns or intervening sequences which do not appear in mature or processed RNA. Thus, post-transcription processing, which involves splicing of introns and fusion of exons is required to form functional mRNA.