But i want to move the [ A C C T] box down on the same levvel as the other 3.. That is making the path line longer to the right and longer down. Please help.
Code:
\scalebox{0.7}{
\begin{tikzpicture}[
-, >=stealth',shorten >=1pt,auto,node distance=0cm,
thick,main node/.style={rectangle,fill=blue!20,draw,text width=3cm,
text centered,font=\sffamily\Large\bfseries},second node/.style={circle,fill=red!20,scale=0.4,draw,font=\sffamily\Huge\bfseries}, % Gates and symbols style
and/.style={and gate US,thick,draw,fill=red!60,rotate=90,
anchor=east,xshift=-1mm},
or/.style={or gate US,thick,draw,fill=blue!60,rotate=90,
anchor=east,xshift=-1mm},
be/.style={circle,thick,draw,fill=green!60,anchor=north,
minimum width=0.7cm},
tr/.style={buffer gate US,thick,draw,fill=purple!60,rotate=90,
anchor=east,minimum width=0.8cm},
% Label style
label distance=3mm,
every label/.style={blue},
% Event style
event/.style={rectangle,thick,draw,fill=yellow!20,text width=2cm,
text centered,font=\sffamily,anchor=north},
% Children and edges style
edge from parent/.style={very thick,draw=black!70},
edge from parent path={(\tikzparentnode.south) -- ++(0,-1.05cm)
-| (\tikzchildnode.north)},
level 1/.style={sibling distance=5cm,level distance=2 cm,
growth parent anchor=south,nodes=event},
level 2/.style={sibling distance=7cm},
level 3/.style={sibling distance=6cm},
level 4/.style={sibling distance=3cm} ]
\tikzstyle{line} = [draw, -]
\node (1) [main node] {A C G T}
child{ node (m) [second node] {$\bold{M}_1$}
child{ node (2) [main node]{T G G T}}
child{node (3) [main node] { T G G T}}
child{ node (4) [main node] {T C C T}}}
child{node (5) [main node] { A C C T}};
\end{tikzpicture}
}