

$CH_3CH=CHCH_2CHBrCH_3$
$\mathop { - CH{{(C{H_3})}_2}}\limits_1 \,\,\,\,\,\,\,\,\,\,\,\mathop { - C{H_2}C{H_2}Br}\limits_2 \,\,\,\,\,\,\,\,\,\,\mathop { - C{H_2}Br}\limits_3 \,\,\,\,\,\,\,\,\,\,\mathop { - C{{(C{H_3})}_3}}\limits_4 $
$I = II = III = IV$
ગ્લાયસીન સિવાય કે જે અકીરાલ છે, પ્રોટીનમાં હાજર બધા એમિનો એસિડ ......

$\begin{array}{*{20}{c}}
{R = - CH - Cl}\\
{|\,\,}\\
{\,\,\,\,C{H_3}}
\end{array}\,\,\,\,,\,\,\,\,\,\,\,\,\,\,\begin{array}{*{20}{c}}
{S = - CH - Cl}\\
{|\,\,}\\
{Br}
\end{array}$