Recessive Question(s)

[paulh]

[QUOTE=Ronniex2;2777343]So the best odds did happen …
the spider didn’t seem to get the job done,
the Pastel/Clown I paired her with did …
proved her out to be 100% with amazing odds as I got 1.1- clown, 0.4 -pastel/clowns, 1.1- normal (1 egg did go bad early in incubation so we don’t know if it would’ve been pastel or another clown)


And to clear things up on the Initial question…
Hets are what scared me away the first time I had to spin my head around it all, not I’m learning that In order to get 66% you have to have both parents be 100%?
So you get the visual(s) if they prove out, but babies will all be 66% het correct ?
So where the guy with the 100%Het monarch is going to call his babies 50%, how if he isn’t proven ? And the dame is no % of monarch or even Poss? So if I mate my “whatever”/Het clown (I know some genes have play here with sex as well but stay with me here)
with Normal (or whatever gene) all the off spring will be 66% or 50% Het clown ?? Or not at all?
/QUOTE]
Congrats on your babies!

I missed the question earlier, so will try to answer them now.

100% het means that it is known for certain that a given individual is a het. In the following, unless somehow qualified, a het animal is known for certain to be het.

het clown x het clown produces
1/4 normal (2 normal genes)
2/4 looks normal (normal gene and clown gene = het clown)
1/4 clown (2 clown genes)
(These are expected results. Actual results can vary just from the luck of the draw.)

Think of this as a pie that is divided into 4 pieces--1 normal piece, 2 het clown pieces, and 1 clown piece. Take away the clown piece. That leaves 3 pieces that look alike. Pick any single piece from those three pieces, and your chance of picking a het clown piece is 2 out of three (2/3 = 66% rounded down). And your chance of picking the normal piece is 1 out of 3 (1/3 = 33% rounded down). You can verify this with three equal-sized pieces of paper marked het, het, and normal and drawing one from a hat. Repeat until satisfied.

In the above mating, only the normal looking babies are 66% probability hets. The clown babies are known to have 2 clown genes.

In other words, to get 66% probability hets, both parents be hets (aka 100% hets). A 66% probability het only stays that way until it goes into a proper breeding test. The test changes classification to either het or normal.

monarch (2 monarch genes) x normal (2 normal genes) produces
1/1 (100%) looks normal (1 monarch gene and 1 normal gene = het monarch)
(This is both the expected and actual result.)

The monarch parent MUST give each baby a monarch gene. The normal parent MUST give each baby a normal gene. A baby with a gene pair made up of one monarch gene and one normal gene is the definition of a het monarch. The babies are proven het monarch by pedigree.

Alternative mating:
monarch (2 monarch genes) x normal looking het monarch (1 normal gene and one monarch gene) produces
1/2 (50%) looks normal (1 monarch gene and 1 normal gene = het monarch)
1/2 (50%) monarch (2 monarch genes)
(These are expected results. Actual results can vary just from the luck of the draw.)

As monarch snakes do not look normal, the normal looking babies are proven to be het monarch by predigree.

het monarch (one normal gene and one monarch gene) x normal (2 normal genes) produces
1/2 (50%) of the babies are het and look normal (one normal gene and one monarch gene)
1/2 (50%) of the babies are normal (2 normal genes)
(These are expected results. Actual results can vary just from the luck of the draw.)

The normal parent MUST give every baby a normal gene.
Half of the het monarch male's sperm cells have a monarch gene and half of the sperm cells have a normal gene.

Going to the pie analogy, there are two pieces on the plate. One is het and the other is normal, but they look alike so both pieces are marked 50% probability het. A proper breeding test will change the classification to either het or normal.

Hope that helps.