Tri-hybrid: Zombie “speed” is a trait determined by the alleles F and f at the speed gene, where fast is dominant to slow.  Zombie “brain eating” is a trait determined by the alleles B and b at the brain-eating gene, with eating brains recessive to not eating brains. Zombie drooling is a trait determined by the alleles D and d at the drooling gene where not drooling is recessive to drooling. Cross: A female Zombie that is ffbbDd has offspring with a male Zombie that is FFBbdd. What percentage of the offspring will be fast?  What percentage of the offspring will be brain eaters?  I'm having trouble with how these is set up as a punnent, and then calculating probability.

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