Genetics: Trihybrid Cross: The Forked Line Method

[MegaAznkid123]

How Did you get 16 for the denominator? Should it be 64? Im CONFUSED

[mbettie51]

Thank you so much for this video and such a clear explanation.

[sadeladybug]

You just save my life. Thank u sooooooOOOOOOOOO much!

[animesparkle2005]

you made my life so much easier!!! i hate genetics but you really made it less complicated! i wanna see more stuff abt fruit flies and all...thanks ALOT!!!

[imaimaadiva123]

God bless you 

[DNAunion]

The very end result shows the genotypes with their frequencies, and the rest of the video explains how to get that result.

[seifer128]

how will i know if that there is 27/64 9/64 9/64 9/64 3/64 3/64 3/64 1/64? please explain it further..

[diln5]

@seifer128 Multiply the probabilities. So say the frequency of a genotype for one gene is 3/4 and another genotype for another gene is 1/2. The frequency of BOTH occurring in one organism is 3/8.

[aFlipEdward]

Helped with my AP Biology homework. Thanks.

[anvilheaded]

i want to make sweet love to you for this

[MonaRocks09]

the music tho

[notreallysmart2]

THANK YOU SO MUCH!!!



[JoseEatsAirplane]

This helps so much! thanks!

[kingjaffiejofer]

Thanks a lot. Very easy now. I'm ready for my exam lol

[2ndpoolfilms]

please answer my question! i need this by friday, my question sais: do the trihybrid cross with these alleles dominant alleles: 1) eyes (E) 2) hairy body (H) 3) large wings (L) recessive alleles: 1) eyeless (e) 2) hairless body (h) 3) small wings (l) please help me, how do i set this up so i can plug it into the punnet square? pleases help, i cant find it anywhere! once again i need this by feb. 11. its worth alot of points towards my grade and i need it, please help! -thank you

[76kookie]

I never got this in class. Now it's much more clear to me!

Thank you so much! very helpful video.

[samiranademi]

Thanks :)

[hellokittydimaggio]

what happens if i have

AA x aa ?? dont you get all Aa , how would you set that up???

1Aa?

or like aaxaa? is that even possible...

[DNAunion]

@hellokittydimaggio

That's a simple monohybrid cross between two pure-breeding lines. That's too basic for the videos I have made. Also, since you are a beginner at genetics, you might want to use a Punnett square. You can search for those terms (monohybrid and/or Punnett) for videos.

[1223Melo]

@DNAunion Lol.

[moonraven312]

My teacher does not know how to explain this. I felt like a moron in this class, until i saw this vid. Tyvm! I knew there must be an easier way and voila!

[bvlgary09]

omg. I've been reading my stupid book for 1 day and couldn't undestand a thing its saying. Then it only took me 2 min to understand how to read and construct a branch diagram by watching your vid. Thanks omgg!

[pelicansfly]

I just watched this because of the song. Beautiful!

[PumpTherapy]

Baby you da best. My prof ain't shit. OH YEAAHHH. But seriously, this video was very helpful and simple! :)

[missmex]

Wow this REALLY HELPED!! Thank you so much.

[ivonygirl]

Oh my gosh!! My professor was doing this yesterday in class & I was falling asleep, so as much as I tried to understand what was going on, I was so lost & coudn't catch on, but now I completely understand! This looks like fun. Hehe. Thanks! =)

[98682bobbyd]

Thank you for this video. I've struggled to conceptualize anything beyond a dihybrid cross because 8x8 punnett squares are a bit cumbersome.

The way you laid out the forked method , I understand.

[smalltwig]

God I love who ever made this video. I totally forgot this concept, and video has saved my ass.

[notreveh]

@smalltwig mine as well!

[lainemichelleallen]

thank u.... I was able to see it this time and it was very helpful.

[lainemichelleallen]

this video looks really helpful and I would like to watch it all but it keeps stopping..

[DNAunion]

@lainemichelleallen

I just watched it all the way through and it worked fine. Your Internet connection may have acted up while you were trying to watch it.

[ArtsInfinity]

The reason I searched "trihybrid cross" and found this video is because my teacher is offering extra credit if you can do a trihybrid cross with genotype and phenotype ratios in about a half hour. I did one the regular, Punnett Square method...wow...

[missnadiyah]

You're simply amazing.

[Shayann87]

you are my hero!

[JimmyJump007]

Hey thanks a lot for this video. I'm, now a subscriber :)

[Rockster969]

Very informative.I'm reading Allards Principles of plant breeding atm.