Two eukaryotic proteins have one domain in common but are otherwise very different. Which of the following processes is most likely to have contributed to this phenomenon?
A)gene duplication
B)RNA splicing
C)exon shuffling
D)histone modification
E)random point mutations

Question

Quizplus · Accepted Answer

Exon shuffling is a process in which exons from different genes are combined to form new genes, resulting in proteins with domain combinations that may not have existed previously. This process can lead to the formation of proteins with similar domains but different functions. Gene duplication can also result in the formation of similar domains, but does not necessarily create significant differences in the rest of the protein. RNA splicing and histone modification are not likely to result in the formation of significantly different proteins, and random point mutations may lead to unpredictable changes throughout the protein, rather than just in one domain.

Two Eukaryotic Proteins Have One Domain in Common but Are