Jenaith's Weyr

Featuring information on Anne McCaffrey's Pern, including Dragonhealing, Herbalry, and Dracogenetics.

     Welcome to Pern
     Copyright Notice

     Craftstandards (12th Pass)
     Dragon Anatomy

     Common Remedies

     Tissue Damage
     Miscellaneous Remedies

     Metallics & Rank
     White Dragons


     Established Heraldry
     Blank Shields
     Heraldic Colors

     View 2001-?
     View 1999-2000
     View 1998

     Anne McCaffrey's Site
     SunCliff Weyr
     Logres Weyr

     My Personal Site
     Sigma Psi
     Email Me


This text is compiled from factual, statistical, or other information originally from work done and/or owned by Anne McCaffrey. Credit is also given to Dr. Jack Cohen, who developed the theoretical basis for the McCaffrey-Cohen model. Statements expressed herein are ideas that may or may not coincide with those of Anne McCaffrey or Dr. Jack Cohen, and those ideas that have no readily available backing by either of the aforementioned are in no way to be interpreted as direct statements of the views, opinions, and/or statments made by the aforementioned.

Exobiology is the science of theoretical biology, in which actual biological principles are used to formulate feasible theoretical models of biological systems. (This science was founded by Dr. Carl Sagan of Cornell University.) It was initially used to postulate what life might be like on other worlds, given the type of environment a life form might be situated in. The McCaffrey-Cohen exobiological model (Named herein for Anne McCaffrey and Dr. Jack Cohen, who developed it) is essentially a theoretical model. While in practice, evidence does not presently exist, in theory, the laws of nature support the existence of dragons and other Pernese life forms.

Dracogenetics deals with the aspect of the draconic model concerning genetics. It is largely different from standard Mendellian genetics due to the fact that the genomes of indigenous Pernese life are based on a trihelicoid (triple helix) nucleic acid. Mendellian genetics deals with the Terran dihelicoid (double helix) nucleic acid. Certain patterns of inheritance still remain common to both types of genetic material, however, despite the differing mechanics. The different chemical structures merely differentiate the two genomes in exactly what traits are passed and how they are passed.

This is, of course, completely theoretical. It is based on guesswork and accounts of clutch composition, as well as relative frequency of a dragon in a given clutch and within the dragon population. Also, taken into account is the fact that the bronze and queen dragons must contain the proper combination of alleles to allow any dragon color to emerge.

First Issue: Gender
It is feasible to postulate that dragons operate on a similar method of gender inheritance to mammalian life, based on an X/Y chromosomal system:
    XX = Female
    XY = Male
It may be safely assumed that the populations of male and female dragons are roughly equal. Greens are the most prevalent dragons, golds the least, and all other colors filling in the median values, thus balancing out the count.

< Introduction | Dragonhealing Index | Part Two >


NOTE: These pages were developed from an earlier work by an unknown author. If you are this author or you know who the author is, please email me at [email protected] and I will credit it correctly.

All references to worlds and characters based on Anne McCaffrey's fiction are copyrightę Anne McCaffrey 1967,2000, all rights reserved, and used by permission of the author.

The Dragonriders of Pern« is registered U.S. Patent and Trademark Office, by Anne McCaffrey, used here with permission. Use or reproduction without a license is strictly prohibited. 

Last Updated: 1 January 2002
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