Answer: D. allopatric; breakdown
Explanation:
Allopatric speciation is a type of speciation whereby individuals of the same biological population becomes separated up to the extent that there will no longer be gene flow between them.
1. Amylase, produced in the mouth. It helps break down large starch molecules into smaller sugar molecules.
2. Pepsin, produced in the stomach.
3. Trypsin, produced in the pancreas.
I'm probably wrong. Sorry.
Glycine is an amino acid coded by GGA, GGU, GGC, GGG codons. Histidine is an amino acid coded by CAC, or CAU codons. It should be known that the mRNA chain that will be encoded must always have a START codon at the beginning and a STOP codon at the end.