Question

Differentiate between Exons and introns.

Answer 1

Feature	Exons	Introns
Meaning	They are coding sequences that carry information for protein synthesis.	They are non-coding sequences that do not code for any protein.
Occurrence	Found in both DNA and the mature mRNA.	Found in DNA and the initial pre-mRNA, but absent in mature mRNA.
Splicing	They are joined together after the non-coding parts are removed.	They are removed/spliced out during RNA processing.
Function	They represent the actual “expressed” genes.	They are often involved in regulating gene expression and alternative splicing.
Conservation	Highly conserved (they don't change much between species).	Less conserved and accumulate mutations more rapidly.