how can i call the input data in wavelet transform and generate code for gabor wavelet manually?
You're probably way out of your league if you have these problems, and just getting code won't help you with your project. your teacher will spot rather quickly that you didn't write it.

To start, you should read up on wavelet transforms in general. Gabor wavelets are just a specific kind.

You'll learn that wavelet transforms work on signals. That means you'll need to represent your DNA as a signal, i.e numbers.