Genetic drift: Good or Bad?

EverythingsHazy said:

And after all of that, who's to say the mutation would be a negative one?

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Indeed. Take for example the spirit bear's mutation, which is also recessive, yet gives it an advantage resulting in more white bears https://whyevolutionistrue.wordpress.com/2011/07/19/the-spirit-bear/

Recessive mutant traits express in the phenotype only when homozygous, ie. when both parents passed on that mutated gene. A mutant phenotype is usually the result of the parents carrying and not expressing (has a dominant normal copy of the gene) yet passing on a mutated gene.

A good simple read to understand what really causes the difference between dominant vs recessive: http://genetics.thetech.org/ask/ask227

tstick said:

Well with humans, we all started out with one genetic signature. But, over time and with exposure to different environments, we "drifted" in different ways.

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Or genetic manipulation

medicated00420 said:

From Wikipedia. In botany a sport or bud sport is a part of the plant (usually a woody plant but somtimes a herb)that shows morphological difference. From the rest of the plant.sports may differ in foliage shape or color,flower or branch structure

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this is where the navel orange came from . and they suppose sweet citrus in general!