Pls answer 105 with explanation correctly! Only expert

Dear student,
Option 4 is correct.
$$\begin{gathered} In process of organogenesis, genes regulate the process at different time and levels because of EXON. \\ It is part of gene that encodes a final part of mRNA (messenger RNA) after the introns of the genes have been removed by splicing. \end{gathered}$$





Hope this information will clear your doubts about topic.

If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.

Regards