The other Tony :) is exactly right. Not to get too bogged down in
genetics, but imagine it this way. To get albinism you need two copies of
the albinism gene. Its recessive so one just won't do it. "Normal" is the
dominant gene so you only need one copy of that to look "normal."
Therefore breeding two hets(heterozygous for albinism(having one copy
each)) will produce offspring that can have various combos of the the
normal and albino genes. It can be normal x normal, normal x albino, or
albino x albino. When you get the combo albino x albino is the only time
you get an albino looking animal, the rest are all normal (there are
mathematical ratios to what combinations the offspring will be, but we'll
skip that.)
Each characteristic may or may not be on a different allele. So you might
have eye color, scale number, claw size, etc. all decided separately.
That's how you might get a het for
patternless/blazing/avocado/samurai/stapler leopard gecko :). Of course we
could also go into go dominance and partial dominance.....(ah the joy of
genetics, how are those clones coming Tony?:) TC
At 06:33 PM 12/19/00 -0600, you wrote:
>Hello Hilde,
>
>Tuesday, December 19, 2000, 6:10:00 PM, you wrote:
>H> Quite often there are albino x 'something or other', to use an example.
If the
>H> 'something or other' is a normal phase leopard, I can see the hets
looking like
>H> normal. What I'm wondering about is the a het from an albino x
patternless or
>H> blizzard etc. What does the 'normal' looking het look like? Does the
>H> patternless or blizzard become the normal?
>No, what you get are "double hets". Because these traits (like albino,
patternless
>and blizzard) are not allelic (that is, different versions of the same
>gene) they sort independently (or we assume they do). Because of this,
>an animal can be "het" for albino AND "het" for blizzard and it will
>look "normal."
>
>H> If it's wild type colouration, where would it come from, if neither parent
>H> has 'normal' genes.
>The key is that both parents DO have "normal" genes. The
>defective gene that causes albinism is "normal" in a blizzard
>leopard just as the blizzard gene is "normal" in an albino (which has
>a defective albino gene). The traits are independent of each other.
>I hope this helps.
>--
>Best regards,
> Tony mailto:[EMAIL PROTECTED]
>
>
>######################################################################
> THE GLOBAL GECKO ASSOCIATION LISTSERV
> WebSite: http://www.gekkota.com
> The GGA takes no responsibility for the contents of these postings.
>######################################################################
>
>
