What are the bonds that join amino acids together called?

the four atoms, nitrogen, hydrogen, carbon and oxygen that link the two amino acids together is called a peptide bond. two amino acids linked together in his way is called a dipeptide and a long chain of amino acids is called a polypeptide.

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you and your brother should be dizygotic twins (fraternal) twins since identical twins can only be one gender: boy and boy   or   girl and girl.

i dont know this but ask your teacher for !