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 [ ]
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
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 [ ]
A branching diagram, also known as a Punnett square, can help determine the genotypic ratios of the offspring in a dihybrid cross.
Step by step
Solved in 4 steps
