Molecular Basis of Inheritance Question 99
99. In eukaryotes, after transcription of mRNA, some of its nucleotides are removed before it is translated into polypeptide. The nucleotides which are removed from mRNA are called
(a) exons
(b) upstream sequences
(c) unusual bases
(d) introns
Show Answer
Answer : d
Hints & Solution
(d) Eukaryote RNAs contain non coding intervening segments called introns. The process of removal of introns through cutting and joining the essential coding sequences (exons) is called splicing.
