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Join Stoner Forums today! | Autoflowering genetics Advanced Techniques 
03-24-2008, 08:12 PM
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#1 | | Myco/Ethno researcher My Mood: 
Join Date: Jan 2007 Location: Great Lakes region Gender: 
Posts: 78
Stoner Buck$$: 393.28 |  Autoflowering genetics
Normal X Homozygous Parents Here we'll demonstrate a punnett square to show the resulting offspring from breeding a Normal strain (NN) to an Autoflowering strain (aa). As we can see from the above square, all of the offspring from breeding a Normal to an Autoflower will be normal in appearance, but carry the gene for autoflowering (Na). The offspring are all 100% heterozygous (Na) for autoflowering, otherwise known as "definite hets." Normal X Heterozygous Parents This punnett square shows the offspring from breeding a 100% heterozygous for Autoflowering (Na) to a Normal type (NN). From this pairing of heterozygous (Na) to Normal (NN), we can see that all of the offspring will be normal in appearance, but half of them will be heterozygous for Autoflowering (Na). Breeding hets to normals produces what are known as "50% possible hets." Since half of the offspring are hets, but all of them are normal in appearance, you have a 50% chance of the plant you grow actually being a heterozygous (Na) plant. The fastest way to prove which of the offspring are definite hets (Na) is to breed them back to a homozygous (aa) strain. If the parent you picked was one of the definite hets, then you should theoretically see a homozygous (aa) plant (in this case, an Autoflowerer) in their offspring. Heterozygous X Heterozygous Parents Moving on to our next genetic combination, we have a punnett square for the results from a het for Autoflowering (Na) to het for Autoflowering (Na) breeding. Out of the four offspring shown in this square, we see one normal/wild-type/non-gene-carrying plant (NN), two heterozygous plants (Na), and one Autoflowering (aa) plant. Just like with the normal-to-het breeding shown above, the two hets (Na) and one wild type (NN) plants from this pairing are all normal in appearance, so it is impossible to tell which plants are the hets. Since approximately 2/3 (or 66%) of the normal appearing offspring in this run are actual hets for Autoflowering, they are labeled as "66% possible hets." As we can see here, breeding hets together can be a very feasible way to produce a homozygous strain. Heterozygous X Homozygous ParentsHere we explore another "instant gratification" combo: breeding a het Autoflowering (Na) to an Autoflowering (aa) plant. As we'll see from the punnett square, this pairing produces homozygous animals. What a great combo this is!! According to our punnett square, out of the four resulting offspring two will be het for Autoflowering (Na) and two will be homozygous Autoflowerers (aa)! Since one of the parents was a homozygous (aa) plant, all of the normal-appearing offspring will be 100% hets (Na) - no guesswork involved.
Homozygous X Homozygous Parents Our final punnett square is very straightforward. Just as two completely normal (NN) strains will produce all normal (NN) offspring, two homozygous Autoflowering (aa) plants bred together will produce all homozygous Autoflowering (aa) offspring.
__________________ Quote: |
Originally Posted by unmeg P.S. Jesus I think I see a crowd gathering some timber & a few nails !!!!!! lmao | |  
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03-28-2008, 02:08 AM
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#2 | | Veteran Stoner My Mood: 
Join Date: Jun 2007 Location: Ya Right Gender:
Posts: 278
Stoner Buck$$: 652.71 | Re: Autoflowering genetics
__________________
“How people treat you is their karma; how you react is yours.” “Maxim for life: You get treated in life the way you teach people to treat you.” “The highest form of ignorance is when you reject something you don't know anything about.” “Flatter me, and I may not believe you. Criticize me, and I may not like you. Ignore me, and I may not forgive you. Encourage me, and I will not forget you. Love me and I may be forced to love you.” | |
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04-02-2008, 02:05 AM
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#3 | | Myco/Ethno researcher My Mood:
Join Date: Jan 2007 Location: Great Lakes region Gender:
Posts: 78
Stoner Buck$$: 393.28 | Re: Autoflowering genetics
Is there a troll about?
__________________ Quote: |
Originally Posted by unmeg P.S. Jesus I think I see a crowd gathering some timber & a few nails !!!!!! lmao | | |
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04-02-2008, 05:47 PM
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#4 | | Veteran Stoner My Mood:
Join Date: Jun 2007 Location: Ya Right Gender:
Posts: 278
Stoner Buck$$: 652.71 | Re: Autoflowering genetics
__________________
“How people treat you is their karma; how you react is yours.” “Maxim for life: You get treated in life the way you teach people to treat you.” “The highest form of ignorance is when you reject something you don't know anything about.” “Flatter me, and I may not believe you. Criticize me, and I may not like you. Ignore me, and I may not forgive you. Encourage me, and I will not forget you. Love me and I may be forced to love you.” | |
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