A gene encoding a membrane receptor protein is 2682 base pai
A gene encoding a membrane receptor protein is 2682 base pairs long. The mature mRNA of this gene is 1541 nucleotides long (without the polyA tail). The 5\'UTR and the 3\'UTR are 38 and 102 nucleotides, respectively. Does this gene have any introns?
Solution
Answer: Yes, this gene has introns.
Length of the gene = 2682 base pairs
Length of mature mRNA= 1541 nucleotides
Untranslated regions = 38+102= 140 nucleotides
Remaining region of the pre mRNA would account for introns.
