Can someone walk me through Punnett Squares?? Gosh they are so confusing someone help!
I could help.
Awesome! I really need help with this, so that would be great! I will message you. ok? :)
Okay.
done! and i am your fan :3
do u see my message I sent?
Ok seems like he went offline. SO....ANYONE WANT TO HELP???
Sorry, I am typing in between classes and do not know how to check messages on my iTouch. Could you type it here?
yup!
I know the basic of punnett squares, just like what they are. But how to solve them? no idea. :(
my 3rd quater exams are comin up and apparantly these are a big part of the test!
Well I'll try to explain it without using pictures. Lets say T is for tall and t is for short. You cross a TT plant and a tt plant. Create a punter square outline now, with TT on top and tt on the left side.
ok think i got it
Tall is a dominant trait, indicated by the capital Ts. You know it is homozygous dominant (the root "homo" meaning "same"), and same for short: homozygous, but recessive, indicated by the small Ts.
so the small tts are smaller traits....?
like, not as improtant, traits....?
Dominant always dominates recessive, so when you clad the letter from the top left and left top, you'd get Tt. The big letter always comes first. This plant would be heterozygous dominant because dominant dominates the recessive trait (heterozygous means different). This should be the same for each square in the punnett square I gave you.
so, the likiness of someone having....brown eyes, would be TT to tt, with is Tt, then how do you determine the, percentage of the likiness of someone having brown eyes?
If brown eyes = big T, 100%. The T dominates the little t, but the child with brown eyes would have a recessive trait for the other color eye, which if that Tt breeded with another Tt for example, if you work that out, there's a 25% chance that the next generation's child could have a different eye color.
I know it's confusing without me physically drawing a Punnett square; I apologize. I must go now and my iPod is dying. I can help you after school if you still need help them, and I will be able to illustrate it using the drawing option on my PC.
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uh huh....
It's like cross multiplying Captial over throws lower cases though
ooooohhhh.......that statment actually makes sense!!!!!!
|dw:1363893246493:dw|Example: If I had T,t and t,t for both sides it would look like so.
Simply try it as stated (:
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