the last of my eggs hatched yesterday and it turned out to be a smow giving me 23 normals and 1 snow.my question is is my male a het for anything or is it just luck because they were meant to be normal 100%het for snow.

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my corns1.1snow1.1normal het snow1.0anery het hypo1.0orange amel0.1normal het hypo[option]

other snakes0.1milksnake1.0crb1.1royal python0.1hogg island boa[option]

have you not just answered your own question ?

Well, in order to produce even one snow, your male must be het for Amel AND Anery. So there you go

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- Ssthisto





Lizards: 2.1 E. macularius, 1.2 H. caudicinctus, 1.0 R. ciliatus, 0.2.1 A. fragilis, 1.1 T. merianae, 1.0 V. niloticus ittibittius
Colubrids: 3.5.12 P. guttattus, 1.0 P. guttatus X E. climacophora, 1.1 P. o. rossalini, 1.0 P. o. lindheimeri, 0.1 E. anomala, 0.1 C. radiatus
1.2 Lamprophis spp, 1.0 L. g. nigritus, 0.1 L. g. californiae, 1.0 H. n. nasicus, 1.0 P. m. melanoleucus
Boids: 1.1 E. c. maurus, 0.1 E. conicus, 4.1.5 P. regius, 1.1 A. maculosa
We HAD a three-bedroom house... Current lodger: 1.0 E. c. maurus

if it was het amel and anna
wouldnt i have got 25% anna het for amel 25% amel het for anna 25% snow and 25% normal het for snow??????????

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my corns1.1snow1.1normal het snow1.0anery het hypo1.0orange amel0.1normal het hypo[option]

other snakes0.1milksnake1.0crb1.1royal python0.1hogg island boa[option]

I re read your post & the way I read it was you have normal parents het snow, so would they be het snow lol.
(so obviously theres a chance they'll produce snow).

I get what your saying now; are your baby normals het snow if one parent normal is/was het snow. - i think ?

to get normals & snows - even though you got one snow- both the parents, if normals, need to be at least just het for amel & anery (A).

what are the parents ?

what are they het for if you know ?

the female is snow un known hets and the male is normal unknown hets.

the only way i see it producing snow was if it was het amel and anna. but i should of got amels and annas in the clutch as well. but i got 23 normals and one snow ???

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my corns1.1snow1.1normal het snow1.0anery het hypo1.0orange amel0.1normal het hypo[option]

other snakes0.1milksnake1.0crb1.1royal python0.1hogg island boa[option]

theres a 1/4 'CHANCE' for each out come of normal het snow, anery het amel, amel het anery & snow.

It's just a guideline for what could/should/would be produced from crossing your snakes. It's not exact. Maybe you will be luckier next time ?

man thats some crappy odds ya gone there mate..
at least you got one tho, so you KNOW they are deffo het now.

Flip a coin ten times. The probability says you should get five heads and five tails - but it is actually more likely that you'll get something OTHER than that result. It's quite possible to get all heads or all tails or any result in between.

I had a one in four chance of producing blotched anerythristic offspring in my most recent clutch - but ten out of the fifteen were in fact blotched anery; the other five were stripes (one in four chance for the three Anery I got, one of them, a snow stripe, was a one in sixteen), and the last of those five stripes may be a one-in-128 chance animal (Glacier stripe).

Just because you've got a percentage chance of something doesn't mean you'll hit the odds exactly - because it's a chance-per-egg, not chance-per-clutch. They don't 'talk' to each other in the mother's oviduct to make sure that Bill and George are Anery as expected, Bob and Charlene are Amels, Jake and Amanda are snows and everyone else is normal hets...

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- Ssthisto





Lizards: 2.1 E. macularius, 1.2 H. caudicinctus, 1.0 R. ciliatus, 0.2.1 A. fragilis, 1.1 T. merianae, 1.0 V. niloticus ittibittius
Colubrids: 3.5.12 P. guttattus, 1.0 P. guttatus X E. climacophora, 1.1 P. o. rossalini, 1.0 P. o. lindheimeri, 0.1 E. anomala, 0.1 C. radiatus
1.2 Lamprophis spp, 1.0 L. g. nigritus, 0.1 L. g. californiae, 1.0 H. n. nasicus, 1.0 P. m. melanoleucus
Boids: 1.1 E. c. maurus, 0.1 E. conicus, 4.1.5 P. regius, 1.1 A. maculosa
We HAD a three-bedroom house... Current lodger: 1.0 E. c. maurus

Mark940

Just a couple of things to help you out.


Firstly its 'anery' not 'anna'. The term is short for anerytheristic, meaning 'lack of erythin' which is the red pigment found in corns.


Secondly, when people say that you expect 25% this and 25% that, it is just that - expected odds. Think of it as tossing a coin. Probability says that 100 throws will give you 50 heads and 50 tails, however in reality you are unlikely to get that.

In fact what it says in terms of genetics is that each egg/offspring has a 25% chance of being one thing and a 25% chance of being another etc. Not the clutch as a hole.

In your case a snow to normal has produced a 23 normals and a snow. The snow tells you that the normal MUST be het anery and het amel meaning you expected (out of 24) 6 normals, 6 amels, six anerys and six snows. Unfortunately you were just unlucky.... very unlucky!

In fact I was interested as to just how unlucky you were and performed a statistical test called the chi-squared test on your clutch.

Turns out that your clutch is WAY off the scale. The largest table I could find gave a probabilty of 1 in 50,000 and your clutch is way of (for it to be 1 in 50,000 your 'value' must of come out at 17, yours actually came out at 64!)

Still if you look at how many clutches of corns will hatch this year, it's not impossible!

Cheers

Andy

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