Protein 1 and Protein 2 have many differences in their amino acid sequences. Based on this information, which of the following statements are true about Protein 1 and Protein 2?
Choose 2 answers:

(choice A)
The proteins are encoded by genes with different nucleotide sequences.

(Choice B)
B
The proteins likely have different functions.

(Choice C)
C
The proteins must be located in different regions of the body.