-
Hello!
Either you have not registered on this site yet, or you are registered but have not logged in. In either case, you will not be able to use the full functionality of this site until you have registered, and then logged in after your registration has been approved.
Registration is FREE, so please register so you can participate instead of remaining a lurker....
Please be certain that the location field is correctly filled out when you register. All registrations that appear to be bogus will be rejected. Which means that if your location field does NOT match the actual location of your registration IP address, then your registration will be rejected.
Sorry about the strictness of this requirement, but it is necessary to block spammers and scammers at the door as much as possible.
Dominant x Dominant
- Thread starter slangenbroed
- Start date
JimGERcream
German efficiency
At least toffee tesseras should hatch next year lately...maybe even this season. Sit and wait...
Susan
Go Ahead, Make My Day!
Unless buf and tessera are located at the same locus or one masks the effects of the other, a snake that inherits both a buf gene and a tessera gene will simply show both traits...buf tessera. Since a snake has no problem expressing more than one pair of simple recessive genes, for example - hypo anery diffuse stripe, it shouldn't have any problem expressing more than one dominant gene.
slangenbroed
New member
I will do the buf x tessera cross in 2013 and the buf x toffee cross, in the punned square above the T could also be Toffee.
The question is what will happen if two different dominant genes meet each other, what i can find is that they act co-dominant, and how will that express.
Is it , i got something from mom and something from dad, ore would it bee something compleat different.
In the case of tessera i think they will act next to each other, because one is a color and one is a pattern, but iám not 100% sure because of the dominant factor.In the cross Toffee x Buf , and if they are two different colours, then the story is ????????
But maybe a boide breeder could bring more light in it because they have more experience in dominant stuff
Greetings
Jan
JimGERcream
German efficiency
I'd assume there will happen the same as 2 recessive genes meet each other. Why should happen something different? It's pretty much the same as combining recessive genes, I guess.
Kokopelli
Resident Boa Fanatic
What you need to realize is that it is very rare for two genes to effect each other, rather than simply accumulate.
Dominant- it is enough that an animal is carrying the gene at a heterozygous form, in order for it to affect his phenotype. However, should that animal be homozygous there will still be no added effect. Heterozygous and homozygous animals look exactly alike.
Co-Dominant- Same as above, only that the gene does have an added effect with itself… meaning that the homozygous animal looks different from the heterozygous form.
Now… different genes reside on different locations along the DNA strings(there are two, every two genes that reside on the same location upon both strands interacts with one another). The fact that a Cornsnake for instance is het for both Anery type 1 AND Amelanistic doesn’t mean that the two genes actually interact with one another- the reason for this is that the genes responsible for Anery and Amelanistic occur at a different segment of the DNA strand from one another.
So… Let’s compare , as an example, cornsnake DNA strands(a- albino gene, n- anery gene)
Classic: Albino Anery Double het snow: Snow:
X X X X X X X X X X
X X a a X X a X a a
X X X X n n n X n n
As you can see, the a and n never meet… they don’t do anything to each other. The snake itself however is homozygous to two genes that nullify a pigment… so the Anery blocks the creation of the red pigment, and the Albino blocks the creation of Black… so you are left with a white snake which continues developing yellow pigment as it matures.
Now let’s use a Boid example since you suggested… Ball pythons.
We’ll use Pastel, which is a co-dominant morph (there’s a different between a pastel and a super pastel, which are the heterozygous and homozygous forms respectably). AKA P
And we’ll use Spider… which is a dominant morph… the het looks like a spider and there’s no visual “super” form for homozygous animals. AKA S
Classic: Pastel Super Pastel Spider: Bumblebee(Spider Pastel)
X X X X X X X X X X
X X P X P P S X P a
X X X X X X X X S X
As you can see, in the case of the bumblebee, even though both are dominant/co-dom… they never actually interact because they are not on the same locus(location) on the DNA strands.
On VERY rare instances, we learn that two mutations actually reside on the same locus, and effect one another… this is what happens with Ultramel corns… but I’ll use a Boa example… Motley(M) and Salmon.(S) – both are Co-dominant.
Classic: Salmon Motley: Salmon Motley:
X X X X X X X X
X X S X M X S M
X X X X X X X X
Here you will see that both motley and Salmon interact due to their presence on the same locus…
Super Salmons have a certain look, Super motleys have another… but an animal that is het for both actually looks like neither. The Salmon motley can’t be homozygous to neither trait because the two genes occupy the relevant locus. Furthermore, it can only pass either motley or Salmon to his offspring…
What I now described is very rare… and so, I doubt that Ultra and Buf will reside on the same locus due to that rarity… it’s a possibility, sure, but not the most likely of’em.
Dominant- it is enough that an animal is carrying the gene at a heterozygous form, in order for it to affect his phenotype. However, should that animal be homozygous there will still be no added effect. Heterozygous and homozygous animals look exactly alike.
Co-Dominant- Same as above, only that the gene does have an added effect with itself… meaning that the homozygous animal looks different from the heterozygous form.
Now… different genes reside on different locations along the DNA strings(there are two, every two genes that reside on the same location upon both strands interacts with one another). The fact that a Cornsnake for instance is het for both Anery type 1 AND Amelanistic doesn’t mean that the two genes actually interact with one another- the reason for this is that the genes responsible for Anery and Amelanistic occur at a different segment of the DNA strand from one another.
So… Let’s compare , as an example, cornsnake DNA strands(a- albino gene, n- anery gene)
Classic: Albino Anery Double het snow: Snow:
X X X X X X X X X X
X X a a X X a X a a
X X X X n n n X n n
As you can see, the a and n never meet… they don’t do anything to each other. The snake itself however is homozygous to two genes that nullify a pigment… so the Anery blocks the creation of the red pigment, and the Albino blocks the creation of Black… so you are left with a white snake which continues developing yellow pigment as it matures.
Now let’s use a Boid example since you suggested… Ball pythons.
We’ll use Pastel, which is a co-dominant morph (there’s a different between a pastel and a super pastel, which are the heterozygous and homozygous forms respectably). AKA P
And we’ll use Spider… which is a dominant morph… the het looks like a spider and there’s no visual “super” form for homozygous animals. AKA S
Classic: Pastel Super Pastel Spider: Bumblebee(Spider Pastel)
X X X X X X X X X X
X X P X P P S X P a
X X X X X X X X S X
As you can see, in the case of the bumblebee, even though both are dominant/co-dom… they never actually interact because they are not on the same locus(location) on the DNA strands.
On VERY rare instances, we learn that two mutations actually reside on the same locus, and effect one another… this is what happens with Ultramel corns… but I’ll use a Boa example… Motley(M) and Salmon.(S) – both are Co-dominant.
Classic: Salmon Motley: Salmon Motley:
X X X X X X X X
X X S X M X S M
X X X X X X X X
Here you will see that both motley and Salmon interact due to their presence on the same locus…
Super Salmons have a certain look, Super motleys have another… but an animal that is het for both actually looks like neither. The Salmon motley can’t be homozygous to neither trait because the two genes occupy the relevant locus. Furthermore, it can only pass either motley or Salmon to his offspring…
What I now described is very rare… and so, I doubt that Ultra and Buf will reside on the same locus due to that rarity… it’s a possibility, sure, but not the most likely of’em.
Kokopelli
Resident Boa Fanatic
**someone please remove the above post... placed photos instead)
What you need to realize is that it is very rare for two genes to effect each other, rather than simply accumulate.
Dominant- it is enough that an animal is carrying the gene at a heterozygous form, in order for it to affect his phenotype. However, should that animal be homozygous there will still be no added effect. Heterozygous and homozygous animals look exactly alike.
Co-Dominant- Same as above, only that the gene does have an added effect with itself… meaning that the homozygous animal looks different from the heterozygous form.
Now… different genes reside on different locations along the DNA strings(there are two, every two genes that reside on the same location upon both strands interacts with one another). The fact that a Cornsnake for instance is het for both Anery type 1 AND Amelanistic doesn’t mean that the two genes actually interact with one another- the reason for this is that the genes responsible for Anery and Amelanistic occur at a different segment of the DNA strand from one another.
So… Let’s compare , as an example, cornsnake DNA strands(a- albino gene, n- anery gene)
As you can see, the a and n never meet… they don’t do anything to each other. The snake itself however is homozygous to two genes that nullify a pigment… so the Anery blocks the creation of the red pigment, and the Albino blocks the creation of Black… so you are left with a white snake which continues developing yellow pigment as it matures.
Now let’s use a Boid example since you suggested… Ball pythons.
We’ll use Pastel, which is a co-dominant morph (there’s a different between a pastel and a super pastel, which are the heterozygous and homozygous forms respectably). AKA P
And we’ll use Spider… which is a dominant morph… the het looks like a spider and there’s no visual “super” form for homozygous animals. AKA S
As you can see, in the case of the bumblebee, even though both are dominant/co-dom… they never actually interact because they are not on the same locus(location) on the DNA strands.
On VERY rare instances, we learn that two mutations actually reside on the same locus, and effect one another… this is what happens with Ultramel corns… but I’ll use a Boa example… Motley(M) and Salmon.(S) – both are Co-dominant.
Here you will see that both motley and Salmon interact due to their presence on the same locus…
Super Salmons have a certain look, Super motleys have another… but an animal that is het for both actually looks like neither. The Salmon motley can’t be homozygous to neither trait because the two genes occupy the relevant locus. Furthermore, it can only pass either motley or Salmon to his offspring…
What I now described is very rare… and so, I doubt that Ultra and Buf will reside on the same locus due to that rarity… it’s a possibility, sure, but not the most likely of’em.
What you need to realize is that it is very rare for two genes to effect each other, rather than simply accumulate.
Dominant- it is enough that an animal is carrying the gene at a heterozygous form, in order for it to affect his phenotype. However, should that animal be homozygous there will still be no added effect. Heterozygous and homozygous animals look exactly alike.
Co-Dominant- Same as above, only that the gene does have an added effect with itself… meaning that the homozygous animal looks different from the heterozygous form.
Now… different genes reside on different locations along the DNA strings(there are two, every two genes that reside on the same location upon both strands interacts with one another). The fact that a Cornsnake for instance is het for both Anery type 1 AND Amelanistic doesn’t mean that the two genes actually interact with one another- the reason for this is that the genes responsible for Anery and Amelanistic occur at a different segment of the DNA strand from one another.
So… Let’s compare , as an example, cornsnake DNA strands(a- albino gene, n- anery gene)
As you can see, the a and n never meet… they don’t do anything to each other. The snake itself however is homozygous to two genes that nullify a pigment… so the Anery blocks the creation of the red pigment, and the Albino blocks the creation of Black… so you are left with a white snake which continues developing yellow pigment as it matures.
Now let’s use a Boid example since you suggested… Ball pythons.
We’ll use Pastel, which is a co-dominant morph (there’s a different between a pastel and a super pastel, which are the heterozygous and homozygous forms respectably). AKA P
And we’ll use Spider… which is a dominant morph… the het looks like a spider and there’s no visual “super” form for homozygous animals. AKA S
As you can see, in the case of the bumblebee, even though both are dominant/co-dom… they never actually interact because they are not on the same locus(location) on the DNA strands.
On VERY rare instances, we learn that two mutations actually reside on the same locus, and effect one another… this is what happens with Ultramel corns… but I’ll use a Boa example… Motley(M) and Salmon.(S) – both are Co-dominant.
Here you will see that both motley and Salmon interact due to their presence on the same locus…
Super Salmons have a certain look, Super motleys have another… but an animal that is het for both actually looks like neither. The Salmon motley can’t be homozygous to neither trait because the two genes occupy the relevant locus. Furthermore, it can only pass either motley or Salmon to his offspring…
What I now described is very rare… and so, I doubt that Ultra and Buf will reside on the same locus due to that rarity… it’s a possibility, sure, but not the most likely of’em.