I want to see the Punnet Square for a Killer Bee

[BHReptiles]

The "expanded genotype" is simply labeling what alleles the snake has. A snake has 2 alleles (one from mom, one from dad) per gene. There are some recessive traits (like albinos) that need to have two recessive alleles in order for that trait to be seen. So for an albino, you would have "aa". Now, for co-dominant genes, they only need 1 allele in order to express that trait. So for something like a spider, it would have to be "Ss" and for a pastel, it would be "Pp". Basically, they have one allele for the gene of interest (spider, pastel, etc. that is represented by the "S" or "P") and one allele that's for the wildtype/normal (the "s" or the "p"). Now, for anything super, it means that they have two alleles of the gene of interest. So for a super pastel, they would be "PP".

Now that you understand how to expand a genotype, let's see how we use it in a punnet square. As stated earlier, you said the pairing was a bumblebee x pastel. The pastel would be ssPp (wild type for the spider gene [not a spider] and it expresses the pastel gene). The bumblebee is both pastel AND spider, so it's SsPp.

I've done the punnet square below. Now, in order to get the things in bold, you basically take each allele and see what it COULD pair with. For example, ONE spider allele can be paired with either a pastel allele or a wild type allele. This gives you the "Sp" or "SP". The second spider allele can also be paired with either a pastel allele or a wild type allele. I just did this for every allele. In short, for the bumblebee, the combination of alleles are: SP, Sp, sP. or sp. The combination of the alleles for the pastel are these: sP, sp, sP, sp. On the punnet square, the allele combinations for the bumblebee is on the left vertical and the pastel on the top horizontal end:

	sP	sp	sP	sp
SP	SsPP Killerbee	SsPp Bumblebee	SsPP Killerbee	SsPp Bumblebee
Sp	SsPp Bumblebee	Sspp Spider	SsPp Bumblebee	Sspp Spider
sP	ssPP Super Pastel	ssPp Pastel	ssPP Super Pastel	ssPp Pastel
sp	ssPp Pastel	sspp Normal	ssPp Pastel	sspp Normal

So, in total, you will have
2/16 = 1/8 chance of a Killerbee
4/16 = 1/4 chance of a Bumblee
2/16 = 1/8 chance of a Spider
2/16 = 1/8 chance of a Super Pastel
4/16 = 1/4 chance of a Pastel
2/16 = 1/8 chance of a Normal