Cross 1 AaBb x AaBb Cross 2 AaBbCc x AaBbCc a) Please use a branching diagram to find the genotypic ratios of the offspring of cross 1 illustrated above and complete with the resulting genotypes and ratios. How many different genotypes are there in the offspring of this cross? [       ] Genotype ratios for the offspring of Cross 1 (please indicate both the ratio and the genotype for each one: e.g.: 3AABB:1aabb, etc):  [             ] b) Please use a branching diagram to find the phenotypic ratios of the offspring of cross 2 and complete below the resulting phenotypes and ratios. How many different phenotypes are in the offspring of this cross [          ] Phenotype ratios for the offspring of Cross 2 (please indicate both the ratio and the phenotype for each one using D and R for dominant and recessive phenotypes respectively, for example 1DDD:2DRR, etc.): [                            ] c) What mathematical operation are you using to calculate the ratios for multiple genes and what assumption are you making to be able to use it? I am using [             ] because I am making an assumption of [                        ]

Biology (MindTap Course List)
11th Edition
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Chapter11: The Basic Principles Of Heredity
Section: Chapter Questions
Problem 11TYU: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were...
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Cross 1 AaBb x AaBb

Cross 2 AaBbCc x AaBbCc

a) Please use a branching diagram to find the genotypic ratios of the offspring of cross 1 illustrated above and complete with the resulting genotypes and ratios.

How many different genotypes are there in the offspring of this cross? [       ]

Genotype ratios for the offspring of Cross 1 (please indicate both the ratio and the genotype for each one: e.g.: 3AABB:1aabb, etc):  [             ]

b) Please use a branching diagram to find the phenotypic ratios of the offspring of cross 2 and complete below the resulting phenotypes and ratios.

How many different phenotypes are in the offspring of this cross [          ]

Phenotype ratios for the offspring of Cross 2 (please indicate both the ratio and the phenotype for each one using D and R for dominant and recessive phenotypes respectively, for example 1DDD:2DRR, etc.): [                            ]

c) What mathematical operation are you using to calculate the ratios for multiple genes and what assumption are you making to be able to use it?

I am using [             ] because I am making an assumption of [                        ]

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