Spider X Pied = ?

[Markus Heinsohn]

I am fairly new to BPs and genetics, but I think I have understood most of the simple recessive & dominant/co-dominant traits.

My question is, what happens when you combine a co-dominant with a simple recessive trait?

For example, I have a spider and would like to pair it up with a piebald. What's the result?

Does the punnett square look like this:

N p*
a Na ap*
a Na ap*


So would I get 50% het pieds and 50% spider pieds?

Thanks!
Markus

[Freakie_frog]

I am fairly new to BPs and genetics, but I think I have understood most of the simple recessive & dominant/co-dominant traits.

My question is, what happens when you combine a co-dominant with a simple recessive trait?

For example, I have a spider and would like to pair it up with a piebald. What's the result?

Does the punnett square look like this:

N p*
a Na ap*
a Na ap*


So would I get 50% het pieds and 50% spider pieds?

Thanks!
Markus

spiders Het pied and normals het pied

[extensive]

yep basically a 50% chance per egg of being spider and all of them would be het for pied.

[Markus Heinsohn]

Thanks! So then I take a spider het pied and a pied, are the odds 1/4 to get a true spider pied? Or do I have to combine two spider het pieds?

[Freakie_frog]

you get a 50/50 shot with a spider het pied and a pied.

[Markus Heinsohn]

you get a 50/50 shot with a spider het pied and a pied.

Is that true? I mean the chance to get a pied is 50%, that makes sense.... but to get a spider as well is 50% too, so combined it should be 25% for a spider pied, or am I wrong?

[Freakie_frog]

Is that true? I mean the chance to get a pied is 50%, that makes sense.... but to get a spider as well is 50% too, so combined it should be 25% for a spider pied, or am I wrong?

Spider to normal you get a 50/50 of spiders.
Pied to Het Pied you get a 50/50 of pieds het pieds

so 50/50 on spider and 50/50 on pieds give you a 50/50 shot at spider pied

[Markus Heinsohn]

Spider to normal you get a 50/50 of spiders.
Pied to Het Pied you get a 50/50 of pieds het pieds

so 50/50 on spider and 50/50 on pieds give you a 50/50 shot at spider pied

I'm not sure I agree Let's say I get 4 eggs, 2 of those are pied, 2 het pied. Now, of those 2 pieds, the odds are 50% of one being a spider (same for the het pieds), so out of the 4 eggs, only one is a spider pied. That's 25%. Right? Wrong? Does it rain tomorrow?

[Freakie_frog]

I'm not sure I agree Let's say I get 4 eggs, 2 of those are pied, 2 het pied. Now, of those 2 pieds, the odds are 50% of one being a spider (same for the het pieds), so out of the 4 eggs, only one is a spider pied. That's 25%. Right? Wrong? Does it rain tomorrow?

I miss worked the square.. your correct

[Fearless]

I'm not sure I agree Let's say I get 4 eggs, 2 of those are pied, 2 het pied. Now, of those 2 pieds, the odds are 50% of one being a spider (same for the het pieds), so out of the 4 eggs, only one is a spider pied. That's 25%. Right? Wrong? Does it rain tomorrow?

You are correct on your 25% odds, Gave up on trying to figure out the weather though, cuz yesterday it was about 50 degrees and last night it snowed. Good thing its still africa in my snake room!