double co-dom punnet square?

[cinderbird]

I'm totally having a brain fart with this. Its the last image that needs to go in the book and i'm totally not getting the right picture for it, help?

I'm using an example of a Bee bred to a normal, i know the outcome is 25% normal, pastel, spider and bee per egg but.. visualizing this is driving me nuts.

[blackcrystal22]

Lets see..

Bumble-bee x Normal

...[S][P]
[n]Sn Pn
[n]Sn Pn

You should get 50% spiders, and 50% Pastels. ;]

Correct me anyone if I'm wrong.
Let me try one more too.

Bumble-bee x Pastel

...[S][P]
[P]SP PP
[n]Sn Pn

25% Spider, 25% Pastel, 25% Super Pastel, 25% Bumble Bee

I think I'm getting this..

[Corvid]

I'm Pretty sure it's:
Bumble Bee (SsPp) X Normal (nn)
...[SP] [Sp] [Ps] [sp]
[n]SPn Spn sPn spn
[n] " " " "

SPn = Bumble Bee
Spn = Spider
sPn = Pastel
spn = Normal

[SUPERBALLS]

Lets see..

Bumble-bee x Normal

...[S][P]
[n]Sn Pn
[n]Sn Pn

You should get 50% spiders, and 50% Pastels. ;]

Correct me anyone if I'm wrong.
Let me try one more too.

Bumble-bee x Pastel

...[S][P]
[P]SP PP
[n]Sn Pn

25% Spider, 25% Pastel, 25% Super Pastel, 25% Bumble Bee

I think I'm getting this..

yeah umm no! your way off the post from corvid is closer and plus your forgeting all about the killer bee in the bumble to pastel breeding

[blackcrystal22]

yeah umm no! your way off the post from corvid is closer and plus your forgeting all about the killer bee in the bumble to pastel breeding

Yeah I figured that part out, however, you say 'corvid is closer'.

Since neither of us are correct then, saying the correct answer instead of specifically correcting me without an answer to the original question would be nice.

[blackcrystal22]

I'm Pretty sure it's:
Bumble Bee (SsPp) X Normal (nn)
...[SP] [Sp] [Ps] [sp]
[n]SPn Spn sPn spn
[n] " " " "

SPn = Bumble Bee
Spn = Spider
sPn = Pastel
spn = Normal

Right, darn, I was thinking non-double.
However, with double co-doms wouldn't you have to pair each one with [n] as well because it's not two of the same trait?

So that a bumble bee would be: [SnPn]
And a spider would be: [Sn] ??

Because I thought, like with recessive traits, you would display the het as (albino) [An] and a visibly recessive as [AA]?
So you would have to have 2 letters for each genetic trait?

At least, thats what I thought, but I'm not sure how you put that together..

[Corvid]

I think Ss would be correct, because it is saying that it is heterozygous for the trait. For example PP would be a super Pastel, so Pp would be a normal (heterozygous) pastel.
And I just noticed the title, this is not a double co-dom this is codom/dom because there is to "Super" (homozygous) form of a spider.
Pastel is co-dominant
Spider is dominant

As always, Correct ME if I'm wrong!!

[blackcrystal22]

I think Ss would be correct, because it is saying that it is heterozygous for the trait. For example PP would be a super Pastel, so Pp would be a normal (heterozygous) pastel.
And I just noticed the title, this is not a double co-dom this is codom/dom because there is to "Super" (homozygous) form of a spider.
Pastel is co-dominant
Spider is dominant

As always, Correct ME if I'm wrong!!

Spider is unproven dominant I do believe, but only needs one gene to show it's trait so essentially its very similar to a co-dom in genetic nature.

Your right, proper terms would be SS Ss and PP Pp.
So a bumble bee would be SsPp. SS doesn't exist as far as we know either yet.

[DutchHerp]

I've heard of several people having possible homozygous spiders.

A "regular" spider is Ss. A possible homozygous spider would be SS.

As for the Punnett Square, I got no clue.

[TMoore]

You can use a punnet square like this. Punnet Square Just replace the dh snow with pastel and spider genes.