What is meant by exon shuffling and what model of gene evolu

What is meant by “exon shuffling” and what model of gene evolution does this possibility support?

Solution

Exon shuffling is mechanism of formation of new genes and the formation of these new genes are mainly can be done through bringing up of two or more exons from different genes ectopically. This type of shuffling is going to support model of gene evolution based on Helitrons, in which “directed evolution of proteins happened through “the read-through model” or a filler DNA model (FDNA). These models are mainly associated with gene copies on a composite transposon.