| Torillian said:
What I've read does not mention anything about inbreeding causing increased copying errors, those occur at the same rate regardless of who you're mating with. The issue with inbreeding is that any weaknesses your specific genes have (such as a recessive gene for some genetic defect) are amplified because your DNA is too similar and you both have the same problems. It's the same reason that Jewish couples have to worry about Tay-Sachs disease, but only if they date another Fewish person and not if they go outside that gene pool. |
That kind of rings a bell. In french "Gene dominant, Gene récessif" and we learned that some genes emerge given certain combinations of the pairs of chromosomes iirc (it's been so long).
That kind of refines my viewpoint then. I guess that copying errors just occur naturally in procreation, and so over time they lead to "weaknesses" or defects. Then, after the fact, inbreeding would lead to more chances of defects becoming dominant genes and actually emerging in the individual did I understand that correctly?
Regarding fruit flies it would seem that those defects becoming dominant would lead to sterility (from dsgrue's e.coli article).
