Whats a Het?

D

DudleyDragon

Guest
When people say....possible het, does that mean possible heterozygous? Meaning it can carry a certain trait but looks like another?
 

Khrysty

New Member
Messages
2,650
Location
Oregon, IL
Yep, that's exactly what it means. A gecko that's heterozygous for a trait means it carries the genotype (the genetic coding for that trait) but not the phenotype (the physical display of it). If a gecko is het tremper albino, for instance, and you bred it to another het tremper, or just a plain tremper albino, you'd get little baby trempers :D
 

RampantReptiles

New Member
Messages
2,488
Location
Canandaigua, NY
when a gecko is possible het it means that the person is not sure if it is het or not without breeding it out.
For example...if you bred 2 geckos that were het for something and the baby did not end up showing that trait, then there would be a chance that the baby is het for it but it might not be.
As opposed to if you bred something like a normal and a tremper albino. Then you know for sure that all their babies will be het tremper because all the babies would have one part of the tremper gene.
 

CallDr

New Member
Messages
412
when a gecko is possible het it means that the person is not sure if it is het or not without breeding it out.
For example...if you bred 2 geckos that were het for something and the baby did not end up showing that trait, then there would be a chance that the baby is het for it but it might not be.
As opposed to if you bred something like a normal and a tremper albino. Then you know for sure that all their babies will be het tremper because all the babies would have one part of the tremper gene.

So when you breed 2 with one being a Normal and the other Tremper. Then all the offspring will be Hets?

Then is every offspring or the offsprings will be Hets?

So in breeding you are getting some mutations...... till a mutation becomes a dominate Gene?
 

RampantReptiles

New Member
Messages
2,488
Location
Canandaigua, NY
So when you breed 2 with one being a Normal and the other Tremper. Then all the offspring will be Hets?

Then is every offspring or the offsprings will be Hets?

So in breeding you are getting some mutations...... till a mutation becomes a dominate Gene?

Yes when you breed a recessive trait like tremper albino to something that does not have the tremper albino genes, all the babies will be het. The way that the genetics works is that there are 2 parts of the gene. In order for a recessive trait to be shown you must have both of the parts. If you only have one part then it is a het.

Not entirely sure what your asking.

There are no mutations going on in breeding. The genes do not become dominant. Most genes are recessive and so you must have the 2 parts of the gene for them to show on the gecko. Only having one part of the gene makes a het.

There are also other genes that act differently like dominant or co-dominant.
 

Ehatcher

New Member
Messages
898
Location
Maryville, TN
So when you breed 2 with one being a Normal and the other Tremper. Then all the offspring will be Hets?

Then is every offspring or the offsprings will be Hets?

So in breeding you are getting some mutations...... till a mutation becomes a dominate Gene?

If you breed two animals together that SHOW a heterozygous trait, All animals will display that trait.

If you breed an animal that is showing a heterozygous trait to an animal that is "het for" that heterozygous trait, a percentage of the babies will show the trait and the other percentage will be normal wild type 100% "het for" that trait.

If you breed an animal showing a heterozygous trait to an animal that is neither showing nor "het for" that trait, All babies will be normal wild type 100% "het for" that trait.
 

CallDr

New Member
Messages
412
OK..... it's obvious that i know nothing about these terms and or various names.

When I showed a pic of my Normal that has a white band around the back of the head. She said it was a Bell Normal and the Band would stay and or identify.... her as a Bell Normal.

If this is true. I assume that the Bells bred their "normals" to achieve this "gene"?
picture.php
 

RampantReptiles

New Member
Messages
2,488
Location
Canandaigua, NY
heterozygous literally means different zygotes. Hetero being different and zygote or zygous being the paired (two part) genetic morph we are talking about.
homozygous means of the same zygote, so both zygotes are the same.

The genetic morph we are talking about is either heterozygous(het) or homozygous. A recessive trait must be homozygous to be outwardly visible. People dont say that a gecko is homozygous for a morph, they just say the morph(its implied).

Think of it like heterosexual and homosexual. Heterosexual of a different sex. Homosexual of the same sex.

"If you breed two animals together that SHOW a heterozygous trait, All animals will display that trait."

Not true for some morphs.
Example... Mack Snow crossed with a Mack Snow, both show the trait but not all offspring will.
Babies will be a mix of morphs(all percentages are not exact amounts you will hatch it is probability, so higher numbers are more probable)

Mack Snow X Mack Snow
25% normals
50% Mack Snows
25% Super Snows

This would be true if the wording were a little different. What I think was meant is recessive traits being homozygous, or "showing". So...

If you breed 2 animals that SHOW a homozygous trait, all animals will display that trait. ex. tremper X tremper = tremper

If you breed an animal that is homozygous and one that is heterozygous(het), then you will get a percentage of homozygous(showing) and a portion of het animals;the animals will look normal if there are no other morphs. ex. tremper X het tremper = 50% tremper, 50% het tremper

If you breed a het and a het, then you get a small chance at the morph or a homozygous, a chance at producing more hets but cannot be determined if they are het without proving or breeding them out, and a chance at straight normals or none of that gene. ex. het tremper X het tremper = 25% tremper, 50% het tremper, 25% normal

If you breed a homozygous and an animal without hets, then all offspring are 100% het. ex. tremper X normal(not het tremper) = het tremper
 

CallDr

New Member
Messages
412
Well..... it's still all greek to me..lol.

What I have found is that there are some Gecko's for sale for up to 2,000.00 and even a NFS 10,000.00. I assume there is some :visible trait: that can be seen.

This is probably not the thread to be asking..... but I am trying to figure out the price structure for all the types that are for sale. I do understand...... that one site said....there are only 4 of these known to exist.... such the high price, which I assume is for a collector? ( and maybe a breeder? )
 

Ehatcher

New Member
Messages
898
Location
Maryville, TN
heterozygous literally means different zygotes. Hetero being different and zygote or zygous being the paired (two part) genetic morph we are talking about.
homozygous means of the same zygote, so both zygotes are the same.

The genetic morph we are talking about is either heterozygous(het) or homozygous. A recessive trait must be homozygous to be outwardly visible. People dont say that a gecko is homozygous for a morph, they just say the morph(its implied).

Think of it like heterosexual and homosexual. Heterosexual of a different sex. Homosexual of the same sex.

"If you breed two animals together that SHOW a heterozygous trait, All animals will display that trait."

Not true for some morphs.
Example... Mack Snow crossed with a Mack Snow, both show the trait but not all offspring will.
Babies will be a mix of morphs(all percentages are not exact amounts you will hatch it is probability, so higher numbers are more probable)

Mack Snow X Mack Snow
25% normals
50% Mack Snows
25% Super Snows

This would be true if the wording were a little different. What I think was meant is recessive traits being homozygous, or "showing". So...

If you breed 2 animals that SHOW a homozygous trait, all animals will display that trait. ex. tremper X tremper = tremper

If you breed an animal that is homozygous and one that is heterozygous(het), then you will get a percentage of homozygous(showing) and a portion of het animals;the animals will look normal if there are no other morphs. ex. tremper X het tremper = 50% tremper, 50% het tremper

If you breed a het and a het, then you get a small chance at the morph or a homozygous, a chance at producing more hets but cannot be determined if they are het without proving or breeding them out, and a chance at straight normals or none of that gene. ex. het tremper X het tremper = 25% tremper, 50% het tremper, 25% normal

If you breed a homozygous and an animal without hets, then all offspring are 100% het. ex. tremper X normal(not het tremper) = het tremper



your bottom part is what i was meaning, having to do with recessive traits.

Snows are dominant /co-dominate. You can breed a snow to an animal that has no snow genetics and produce snows. There is also a superform of most dominate/co dominate genes, when both counterparts are displaying that dominate gene. Nothing can be "het for" snow. Just so we dont further confuse anyone.

.
 
Last edited:

Ehatcher

New Member
Messages
898
Location
Maryville, TN
Well..... it's still all greek to me..lol.

What I have found is that there are some Gecko's for sale for up to 2,000.00 and even a NFS 10,000.00. I assume there is some :visible trait: that can be seen.

This is probably not the thread to be asking..... but I am trying to figure out the price structure for all the types that are for sale. I do understand...... that one site said....there are only 4 of these known to exist.... such the high price, which I assume is for a collector? ( and maybe a breeder? )

Price generally depends on the seller. One seller will sell a gecko with certain traits for X amount, while another can set his price for the same gecko with the same traits for considerably less.

Exclusiveness of the morph also determines the price.
 

Visit our friends

Top