NEET 2009 Biology question

Removal of introns and joining the exons in a defined order in a transcription unit is called:

(1)Tailing
(2)Transformation
(3)Capping
(4)SplicingCorrect

Answer: (4)

Solution

In eukaryotes the primary transcript (hnRNA) contains both exons (coding) and introns (non-coding). During processing the introns are removed and the exons are joined together in a defined order:

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Question ID VK-090230