In the structural organization of many eukaryotic genes, individual exons may be related to which of the following?

A) the various domains of the polypeptide product

B) the sequence of the intron that immediately precedes each exon

C) the number of polypeptides making up the functional protein

D) the number of start sites for transcription

Answer: Option A

Explanation:

The tertiary structure of the protein is made of multiple domains. Every domain of the protein has different function allotted to them.

The exon is the functional part of the genetic material. The exon is part of DNA which encodes for the part of the mature RNA which is being produced once all the introns have been removed after splicing.

It is the main part which decides the respective domain of the functional protein.