Just like to mention for the millionth time that 50% of the clutch will not necessarily carry the morph gene... but each individual that is born will have a 50% chance of carrying the morph gene. Completely different and very confusing to newbies, especially ones worried why they are getting clutches with totally different numbers of morphs.
This *IS* going to catch out a LOT of people. We're seeing lots of people with no understanding of genetics at all thinking they will make their millions in morph breeding. There are going to be a lot of disaapointed people come hatching time when 2 out of 4 eggs (or whatever) don't produce a spider royal!
I keep finding breeders all over the internet in every forum (breeders with 20 years experience and breeding hundreds of animals a year) saying to people, "yeah that will make half of the clutch this and half of your clutch that".
How is that going to help anyone? Like you said, people will be very confused when they actually breed their animals and find it doesn't match up at all with what people had told them.
The chances of humans being male or female is 50%. Does this mean if you have two kids then you will have a boy and a girl? Nope. It means each individual has a 50% chance of being male and a 50% chance of being female.
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My pet hate: it is impossible to be heterozygous for RAPTOR.
I think people just need to remember it's like flipping a coin. You have a 50% chance of getting heads or tails - there are only 2 options... but that doesn't mean that you won't get 5 tails in a row or 5 heads in a row.