(His Ser Gin Gly Thr Phe Thr Ser Asp Tyr Sers Tyr Leu) (Asp Ser Thr Asn Met Leu Trm Gin Val Phe Asp Gin Ala9 29 Choose each statement that is correct. The N-terminus of glucagon is positively charged...

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Extracted text: (His Ser Gin Gly Thr Phe Thr Ser Asp Tyr Sers Tyr Leu) (Asp Ser Thr Asn Met Leu Trm Gin Val Phe Asp Gin Ala9 29 Choose each statement that is correct. The N-terminus of glucagon is positively charged at pH 7. The first amino acid in the chain has a side-chain with no charge at pH 7. O At pH 7, the net charge of glucagon is zero. At pH 2, both aspartic acid side chains will be negatively charged. The asparagine side chain at position 28 can lose a proton The tyrosine side chains at positions 10 and 13 are alcohol groups that cannot lose a proton. There is a part of glucagon that has three hydrophobic side chains in a row.