The evolutionary origin of the Bowman-Birk protease inhibitor, which exhibits internal homology, is most likely the consequence of gene duplication and ___ .

Gene Duplication

Explanation:

Stop codons is Right Answer.Stop codons are basic for the end of the interpretation process.If there is no stop codon in the mRNA, at that point there is the likelihood that the Ribosome would synthesise mRNA until the 3′ end of the mRNA isn't experienced. At the 3′ end, there is no codon and consequently, the ribosome can't continue further. Ribosomes slow down when they experience the finish of mRNA without an in-outline stop codon. In microbes, these relentless buildings can be saved by elective ribosome-salvage factor An (ArfA).In microscopic organisms, 2–4% of mRNA transcripts come up short on an in-outline stop codon because of defective translation or nucleolytic cleavage (1).

Geographic isolation.glad i could : )