Trihybrid Cross/Forked-Line Method

Trihybrid Cross/Forked-Line Method

Posted in the Genetics Forum

GenMan

Richmond, VA

#1 Jan 30, 2008
Hi can anyone help me answer these questions? I think I may have the right answer but not too sure, just want to make sure. And also could you please show how to draw these as I'm not sure my drawing is not done correctly. Thankyou!

Using the forked-line method, determine the genotypic and phenotypic ratios of these trihybrid crosses:

1. AaBbCc x AaBBCC

2. AaBBCc x aaBBCc
CheeseFiend

Seal Beach, CA

#3 Jan 2, 2009
http://bio3400.nicerweb.com/Locked/media/ch03...

i hope this helps its a fork lines diagram
gertrude

Ghana

#4 Sep 18, 2010
can anyone help me use the forkline method to solve a cross between BBWWSS BY bbwwss
Kalaka Novella

Sarasota, FL

#5 Feb 27, 2012
GenMan wrote:
Hi can anyone help me answer these questions? I think I may have the right answer but not too sure, just want to make sure. And also could you please show how to draw these as I'm not sure my drawing is not done correctly. Thankyou!
Using the forked-line method, determine the genotypic and phenotypic ratios of these trihybrid crosses:
1. AaBbCc x AaBBCC
2. AaBBCc x aaBBCc
First you put your A's together:
AaXAa BbXBB CcXCC

You get You get You get
AA 1/4 BB 2/4 CC 2/4
Aa 2/4 BB " CC "
aA " bB 2/4 cC 2/4
aa 1/4 bB " cC "
icee

Philippines

#6 Feb 3, 2013
1. AaBbCc x AaBBCC

Aa X Aa Bb X BB Cc X CC
AA =1/4 BB = 2/4 CC =2/4
Aa =2/4 BB CC
Aa Bb = 2/4 Cc =2/4
aa =1/4 Bb Cc

Apply forked-line method
Anaya Howell

Decatur, GA

#7 Feb 20, 2013
Question- A man is heterozygous for his dimples. He is homozygous recessive for his blue eyes, and he is heterozygous for his tall height. He marries a woman that is homozygous dominant for having dimples, homozygous recessive for blue eyes, and is short. What is the ratios for their offspring?
Emmanuel osei bempah

Ghana

#8 Nov 9, 2015
Please can you guys help me solve it I don't understand every bit of solving it A cross between a couple had these gene pairs; AaTtXx and AaTTxx.
Determine the Phenotypic and Genotypic ratios using "Fork-line" method.
Denis kwabiah

Ghana

#9 Nov 9, 2015
Please can anyone help me in this too
Complete this crossing using "fork line method " .TtSsGG ×ttSsGg
Lian

Dasmariñas, Philippines

#10 Feb 3, 2016
where's the answer?
lorievee

Philippines

#11 Feb 13, 2017
how to find the genotypic and phenotypic ratio for tje given crosses using the dichotomous branching?

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