Something I need to know?

[newt]

Hi all, just a question about genes. Ok I bred my male Snow with My female normal motley. I then placed my male normal striped with my gravid female for half an hour.
All ten eggs hatched, and this is what I got:

1-normal-motley.
2-snow-motley.
3-anery-motley.
3-normal-striped-motley.
1-anery-striped-motley.

Now the anery-striped-motley seems to be of both males is that possible?

And one of my normal-striped-motleys has two tongues, that cant be normal?

The only way it has two tongues is that it was past down from his daddy. His dad has an enlarged eye, so the abnormality is genetic?

 

[Serpwidgets]

Hi all, just a question about genes. Ok I bred my male Snow with My female normal motley. I then placed my male normal striped with my gravid female for half an hour.
All ten eggs hatched, and this is what I got:

1-normal-motley.
2-snow-motley.
3-anery-motley.
3-normal-striped-motley.
1-anery-striped-motley.

Now the anery-striped-motley seems to be of both males is that possible?

Generally an egg is fertilized by only one sperm cell. But, out of curiosity, why would you think that one was from both?

It looks like your normal striped male is het for amel/anery, and/or your snow is het for motley or stripe. There's no way with the above data to determine who came from which male. It's possible that the snow fathered all the eggs, it's possible that the stripe fathered all the eggs, and it's possible that each male fathered some of the eggs.

The only way it has two tongues is that it was past down from his daddy.

It could have resulted from incomplete twinning, or a number of other things that would not be genetically controlled. It might be genetic, it might not.

 

[hediki]

how far were the spacing of time between the males? im puzzled y no amels came out but snows did. if the males were close in time period? i thinking that some of the snows soldiers made it some died and some of the normals made the rest of the journy. and it looks like you female is het anery and stiped, and depending on the male possibly amel

 

[PtDnsr]

it looks like you female is het anery and stiped, and depending on the male possibly amel

But the female is a normal motley - doesn't that mean it can't be het for stripe since they are located on the same locus? To put it simply if the female is motley (m^m·m^m) to be het for stripe she would have to have to be M⁺·m^s. That's not possible (please correct me if I'm wrong).

~Katie

 

[Joejr14]

But the female is a normal motley - doesn't that mean it can't be het for stripe since they are located on the same locus? To put it simply if the female is motley (m^m·m^m) to be het for stripe she would have to have to be M⁺·m^s. That's not possible (please correct me if I'm wrong).

~Katie

You are correct. If the female were het for stripe, she would be m^m·m^s.

 

[Serpwidgets]

But the female is a normal motley - doesn't that mean it can't be het for stripe since they are located on the same locus? To put it simply if the female is motley (m^m·m^m) to be het for stripe she would have to have to be M⁺·m^s. That's not possible (please correct me if I'm wrong).

~Katie

Given the female's appearance as a normal motley, her genotype would either be m^m·m^m or m^m·m^s.

(Note that a motley corn with the genotype m^m·m^s is het for stripe.)

 

[PtDnsr]

Given the female's appearance as a normal motley, her genotype would either be m^m·m^m or m^m·m^s.

(Note that a motley corn with the genotype m^m·m^s is het for stripe.)

I wasn't sure if you would consider m^m·m^s being het for stripe. Isn't being het for something showing the dominant trait (in this case not motley or stripe but normal)? I thought that if a snake was m^m·m^s then it would show the motley and stripe pattern. Oh well... :shrugs: ...thanks for pointing that out.

~Katie

 

[Susan]

I thought that if a snake was m^m·m^s then it would show the motley and stripe pattern.

~Katie

That combination can show either an almost perfect motley pattern, an almost stripe pattern, or a combination of the two. Makes it difficult sometimes to know exactly what you have unless you do breeding trials or know exactly what the parents were.

 

[Serpwidgets]

I wasn't sure if you would consider m^m·m^s being het for stripe. Isn't being het for something showing the dominant trait (in this case not motley or stripe but normal)? I thought that if a snake was m^m·m^s then it would show the motley and stripe pattern. Oh well... :shrugs: ...thanks for pointing that out.

~Katie

If the two genes at a locus are the same allele, it is homozygous. If the two genes are different alleles from each other, it is heterozygous for those two things. (A normal het amel is het for A⁺ and a^a.)

So the simplified question is "is m^m the same as or different than m^s?" (Different, therefore it's het.)

Het does not have to mean one gene is hiding, ultramels (a^a·a^u) are also a heterozygous genotype.

 

[Sisuitl]

Actually, it is possible (but extremely rare) for an animal that has been bred by more than one male to have two sperm fertilize one egg, and produce a baby with two biological fathers. This would be called a tetragametic chimaera, and has been well documented in humans. Some cases of hermaphrodism and having two eyes of different colors (like one blue eye and one brown eye) are because the individual is a tetragametic chimaera.

I have had tetragametic chimaera's crop up in my chicken flock from time to time. Usually the offspring are hermaphroditic, and one had an orange eye and a black eye. No idea how common with would be in corns however. It would be an interesting subject to study.