Multiple Choice
In a monohybrid cross between two individuals with the genotype wwggpp × wwggpp, what is the expected genotype of the offspring?
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2. Mendel's Laws of Inheritance
Monohybrid Cross
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Which of the following is an example of a monohybrid cross?
A
Crossing a pea plant with genotype AaBb with another plant with genotype AaBb for seed color and shape
B
Crossing a plant with genotype AaBbCc with another plant with genotype AaBbCc for three traits
C
Crossing a pea plant with genotype Aa with another pea plant with genotype Aa for seed color
D
Crossing a pea plant with genotype AA with a plant with genotype BB for two different traits
Verified step by step guidance1
Understand what a monohybrid cross is: it involves the study of inheritance of a single trait, where the parents differ in one gene with two alleles each.
Look at each option and identify how many traits (genes) are involved in the cross by counting the different gene symbols (e.g., A, B, C).
For the first option, the genotypes are AaBb crossed with AaBb, which involves two traits (A and B), so this is a dihybrid cross, not monohybrid.
For the second option, the genotypes are AaBbCc crossed with AaBbCc, involving three traits (A, B, and C), so this is a trihybrid cross, not monohybrid.
For the third option, the genotypes are Aa crossed with Aa, involving only one trait (A), which fits the definition of a monohybrid cross.
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Monohybrid Cross practice set
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