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What is the probability of having completely recessive offspring from a cross of AaBbccddEeFfGg x AAbbccDdeeFfGG...

What is the probability of having completely recessive offspring from a cross of AaBbccddEeFfGg x AAbbccDdeeFfGG parents? Show your work.

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Answer #1

AaBbccddEeFfGg x AAbbccDdeeFfGG

Aa x AA

A a
A AA Aa
A AA Aa

probability of having a recessive genotype =0

Bb x bb

B b
b Bb bb
b Bb bb

probability of having a recessive genotype = 1/2

cc x cc

probability of having a recessive genotype = 1

dd x Dd

probability of having a recessive genotype = 1/2

Ee x ee

probability of having a recessive genotype =1/2

Ff x Ff

F f
F FF Ff
f Ff ff

probability of having a recessive genotype =1/4

Gg x GG

probability of having a recessive genotype = 0

Thus total probability of having a recessive genotype = 0 x 1/2 x 1 x1/2 x 1/2 x 1/4 x 0 = 0

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