-The F₂ Phenotypic Ratio of 9:3:4 Is a Result of a Cross

question 80

Multiple Choice

-The F₂ phenotypic ratio of 9:3:4 is a result of a cross involving

• A) two genes expressing complete dominance.
• B) a gene expressing dominance and another gene expressing codominance.
• C) two genes expressing codominance.
• D) epistasis, in which one gene modifies the expression of the other gene.
• E) multiple alleles.

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