GENESRCH: a computer program for restriction fragment analysis.

We describe a program GENESRCH which has been written to enable the design of efficient restriction fragment analysis of DNA from patients with hereditary disorders. The program identifies homology of DNA sequences up to 20 base pairs in length, calculates the fragment sizes and indicates the position of enzyme restriction sites within the gene of interest. GENESRCH is written in the BASIC language and will run on any IBM-compatible PC with a parallel printer. A hard disc is recommended for efficient storage and retrieval of data. An example of the use of the program is cited.