Source Code for Human DNA

For many years molecular biologists have been mystified by the fact that
very little of an organism's DNA seems to serve any useful function.

The mystery has now been solved.

The reason why only 30% of human DNA performs any useful function is that
the rest of it is comments.

Once we decode a typical human genome, we see that the contents begin as
follows:

=========================================================================

 /* HUMAN_DNA.H
  *
  * Human Genome
  * Version 2.1
  *
  * (C) God
  */

 /* Revision history:
  *
  * 0000-00-01 00:00  1.0  Adam.
  * 0000-00-02 10:00  1.1  Eve.
  * 0000-00-03 02:11  1.2  Added penis code to male version. A bit messy --
  *                        will require a rewrite later on to make it neater.
  * 0017-03-12 03:14  1.3  Added extra sex drive to male.h; took code from
  *                        elephant-dna.c
  * 0145-10-03 16:33  1.4  Removed tail.
  * 1115-00-31 17:20  1.5  Shortened forearms, expanded brain case.
  * 2091-08-20 13:56  1.6  Opposable thumbs added to hand() routine.
  * 2501-04-09 14:04  1.7  Minor cosmetic improvements -- skin colour made
  *                        darker to match my own image.
  * 2909-07-12 02:21  1.8  Dentition inadequate; added extra 'wisdom' teeth.
  *                        Must remember to make mouth bigger to compensate.
  * 4501-12-31 14:18  1.9  Increase average height.
  * 5533-02-12 17:09  2.0  Added gay option, triggered by high population
  *                        density, to try and slow the overpopulation
  *                        problem.
  * 6004-11-04 16:11  2.1  Made forefinger narrower to fit hole in centre of
  *                        CD.
  */

 /* Standard definitions
  */

 #define SEX male
 #define HEIGHT 1.84
 #define MASS 68
 #define RACE caucasian

 /* Include inherited traits from parent DNA files.
  *
  * Files must be pre-processed with MENDEL program to provide proper
  * inheritance features.
  */

 #include "mother.h"
 #include "father.h"

 #ifndef FATHER
 #warn("Father unknown -- guessing\n")
 #include "bastard.h"
 #endif

 /* Set up sex-specific functions and variables
  */
 #include 

 /* Kludged code -- I'll re-design this lot and re-write it as a proper
  * library sometime soon.
  */
 struct genitals {
 #ifdef MALE
    Penis *jt;
 #endif
    /* G_spot *g;   Removed for debugging purposes */
 #ifdef FEMALE
    Vagina *p;
 #endif
 }

 /* Initialization bootstrap routine -- called before DNA duplication.
  * Allocates buffers and sets up protein file pointers
  */
 DNA *zygote_initialize(Sperm *, Ovum *);

 /* MAIN INITIALIZATION CODE
  *
  * Returns structures containing pre-processed phenotypes for the organism
  * to display at birth.
  *
  * Will be improved later to make output less ugly.
  */
 Characteristic *lookup_phenotype(Identifier *i);