Genetically speaking?

ok i have a question on genetics. i will use spiders & albino's as my example.

ok i purchase a 100% het for albino male and breed it into a female spider. will the babies be 100% het for albino normal/spider, or will it "wash out" the albino gene and make it lets say 66% het for albino?

i hope i asked this right???? please learn me somthing?

100% het albino to a spider........Each egg has a 50/50 chance of hatching out as a spider or a normal looking baby...and each one that hatches will be 50% het for albino...meaning they have a 50/50 chance of carrying the albino gene.

ok i understand there is a 50% chance of the gene being passed on, i am wondering i guess on the gene percentage itself, say hypothetically you know one of the babies has the albino gene, what would be the % of that gene?, so what would be the chance of throwing an albino baby when raised and bred back to the 100% het albino parent?

i may not be asking it right?

You need to prove out your 50% hets. out of 4 poss. hets 2 will be normals and 2 will be 100% hets., you need to breed everyone to find out which ones are het. :)

The answer JLC gave should be enough.... but I'll try to simplify things...

100% Het Albino to Spider will give you (In 6 eggs)

3 Spiders 50% Het Albino
3 Normal/Wild Type Appearing 50% Het Albino

The 50% only applies to the chance of each egg actually carrying the albino gene. The ones that are ACTUALLY het ARE carrying the gene.... there isn't a % on the gene itself... You would have to raise up the female spiders in the clutch, and breed them back to the male 100% Het Albino to find out who's actually carrying the albino gene.... Until then, you would have Spiders 50% Possible Het for Albino.

Hope this clears things up...

ok so i breed the 100% het albino into a spider, i will get a 50% spider and 50% het for albino babies posibility,(how ever it works out), i raise all 4 babies and breed them back into the 100% het albino parent so i should end up with atleast 1 albino (hopefully spider albino)? am i getting this right or just way off?

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Originally Posted by jcaustralia

ok i understand there is a 50% chance of the gene being passed on, i am wondering i guess on the gene percentage itself, say hypothetically you know one of the babies has the albino gene, what would be the % of that gene?, so what would be the chance of throwing an albino baby when raised and bred back to the 100% het albino parent?

i may not be asking it right?

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the animal either has the gene or doesn't, when they say it is a 50% het, that mean that it has a 50% chance of having the gene, if it does carry the gene then it has 100% of that gene,if it doesn't then it has 0% of that gene, you .can't have a percentage of a gene, it is either there or not

~mike

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Originally Posted by jcaustralia

ok so i breed the 100% het albino into a spider, i will get a 50% spider and 50% het for albino babies posibility,(how ever it works out), i raise all 4 babies and breed them back into the 100% het albino parent so i should end up with atleast 1 albino (hopefully spider albino)? am i getting this right or just way off?

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Spider is a dominant gene.... so there will be no percentage on the spiders.... Raise up the female spiders from the resulting clutch (assuming you have a male 100% Het Albino that produced 'em) and breed him back to the female daughters.... Here's what you'll get from THAT pairing (4 eggs)

1 Spider Albino (1/4 Chance)
1 Spiders 66% Poss Het Albino (1/4 Chance)
1 Het Albino (Normal Looking) (1/4 Chance)
1 Normal (1/4 Chance)

(The Het and the Normal will both be considered 66% Poss Het Albinos, the normal appearing Spider will also be considered 66% Poss Het... and hopefully you'll hit on the Spider Albino on the first try... and then.... you hope it's a boy! :) :) That way you can raise up that boy and breed HIM back to his parent.)

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Originally Posted by ddbjdealer

Spider is a dominant gene.... so there will be no percentage on the spiders.... Raise up the female spiders from the resulting clutch (assuming you have a male 100% Het Albino that produced 'em) and breed him back to the female daughters.... Here's what you'll get from THAT pairing (4 eggs)

1 Spider Albino (1/4 Chance)
1 Spiders 66% Poss Het Albino (1/4 Chance)
1 Het Albino (Normal Looking) (1/4 Chance)
1 Normal (1/4 Chance)

(The Het and the Normal will both be considered 66% Poss Het Albinos, the normal appearing Spider will also be considered 66% Poss Het... and hopefully you'll hit on the Spider Albino on the first try... and then.... you hope it's a boy! :) :) That way you can raise up that boy and breed HIM back to his parent.)

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ok that is about what i was wondering. ok as far as it being a male, why should i hope it is a male albino spider, is it for the shortest to maturity for breeding? or do males pass the genes on better?

oh and how can you or anyone be 100% positive on hets?

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Originally Posted by jcaustralia

why should i hope it is a male albino spider, is it for the shortest to maturity for breeding?

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Bingo! :) Shortest time to prove out all of your other poss het girls that you've saved up from the previous breedings.

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Originally Posted by jcaustralia

oh and how can you or anyone be 100% positive on hets?

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The only way you get a 100% Het is if one of the parents is a Homozygous animal.

In the previous example... if you wound up with a male Spider Albino (after all those tries, and all that breeding), then when you breed that male back to the "poss het" females, all of the offspring would then either be Spider Albinos or Spiders 100% Het Albinos or Albinos or 100% Het Albinos.

Breed them to a homo... :)

so skip the het parent and go with a homo for the best result?,

also if breeding a homo to a normal, that would produce the 100% het or the 50% het?

thanks for the learning, lol

Everybody learns on this site!!!

thank you all.

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Originally Posted by jcaustralia

so skip the het parent and go with a homo for the best result?,

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If you have the cash... that would be the "easiest" way to go.. for sure!

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Originally Posted by jcaustralia

also if breeding a homo to a normal, that would produce the 100% het or the 50% het?

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homo to normal gives you 100% hets.

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Originally Posted by ddbjdealer

homo to normal gives you 100% hets.

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and that would be all off spring or only 50% of them?

All of 'em.... homo to normal will give you ALL 100% hets for the homo gene.