Which one of the following structures represents the peptide chain?

  • A
    $-NH-CH(R)-CO-NH-CH(R)-CO-NH-CH(R)-CO-$
  • B
    $-NH-CH(R)-CH_2-CO-NH-CH(R)-CH_2-NH-CO-CH(R)-CH_2-$
  • C
    $-NH-CO-NH-CH(R)-NH-CO-NH-$
  • D
    $-NH-CO-CH_2-CH_2-CH_2-NH-CH_2-CH_2-CH_2-$

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Similar Questions

Within the list shown below,the correct pair of structures of alanine in $pH$ ranges $2-4$ and $9-11$ is:
$I$. $H_{3}N^{+}CH(CH_{3})COOH$
$II$. $H_{2}NCH(CH_{3})COO^{-}$
$III$. $H_{3}N^{+}CH(CH_{3})COO^{-}$
$IV$. $H_{2}NCH(CH_{3})COOH$

Which of the following statements is correct?

Which of the following reagents gives a blue colour with proteins?

Which of the following metals forms a complex with insulin?

Which amino acid is not optically active?

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