Dissertations / Doing my PhD in structural biology and biochemistry - Any sugesstions? [2]

Hi all

I have 2 years experience in Biotech industry and intrested in doing my PhD in structural biology and biochemistry.

I have been thinking about lot of ideas, I just don't feel my ideas are right.

Can some one suggest some ideas on
1)Why interested in pursuing a PhD now?
2)'why would you wish to pursue a PhD degree in our group?

This my first time writing an SOP for Phd programme.

Any help is very much appreciated.

Many thanks in advance

Nilesh