NarrMaster said:
(.... neither is this list all inclusive either).
1) It is a recessive gene.
Originally posted by hammegk
For an individual's gene line, full stop.
hammegk, you fail to comprehend the meaning of 'recessive gene'. Yes, for an individual that has two recessive genes, maybe "full stop" , but for all heterozygous family members, no.
It's interesting to see how many people arguing over evolution seem to grasp only the natural selection aspect. The complexity of genetics always seems to be overlooked. Genetic mutations can be pretty complex and are fascinating stuff.
Within a single generation, major changes can take place.
-large sections of DNA can be deleted or duplicated, or cut out and replaced reversed.
- a single base deleted causes the reading frame to shift. the resulting proteins may have a completely different sequence after this point.
-whole sections of DNA can be swapped between chromosones, sometimes the wrong ones
A mutation might change the expression of the gene:
-what triggers expression, how much of it is expressed.
Genetics affecting behavior are rarely ever straightforward either/or, instead more of a gradient. There's no reason to assume that is connected to a single gene. There may be a dozen different genes that contribute to a behavior. Bisexuality kinda knocks the wind out of the "Homosexuality could not have evolved" argument.
Even a harmful gene can be selected for if it is physically close to a separate unrelated beneficial gene on a chromosone. Think of it as picking teams as a kid, and you can only get the super-athlete if you also take his asthmatic, nearsighted little brother...
Sorry for contributing to the threadjacking. Guess I'm not a great American.