Which of the followingcharacteristics are true about a typical peptide (amide)bond?

1) The bond is planar.
2) There is free rotation about the carbonyl carbon and nitrogenbond.
3) There is substantial double-bond character to this bond.
4) There is a net negative charge on nitrogen and net positivecharge on oxygen.

	Only statements 1, 2, and 4 are correct.
	Only statements 1 and 3 are correct.
	Only statements 2 and 3 are correct.
	All of the listed statements are correct.