Posted by:
Jlassiter
at Tue Jan 17 23:30:21 2012 [ Email Message ] [ Show All Posts by Jlassiter ]
>>Remember that on sex-linked morphs the mutation or genotype occurs on the same gene pair that determines gender: females are females, it turns out, because they get an extra chromosome, on that gene pair. That leaves only a single "slot" for a color-determining gene on that gene pair. Thus a male (having two slots available) that gets one gene for a sex-linked morph looks "normal" and is het, but a female getting one gene on her gene pair (which has only one open slot because the other is filled by the gender-determining gene) shows the phenotype.
Great information Terry....
I wonder if that is why there are some sexually dimorphic mutations.....
You've always explained genetics in such simple terms over the years and it makes it easier to grasp.
I still, to this day check out your genetics page on your website.......
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John Lassiter
Poor planning and procrastination on your part does not constitute an emergency on my part...
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RE: Quick question on genetics - Jlassiter, Tue Jan 17 23:30:21 2012