Use the Following Information to Answer the Question In a Drosophila Experiment, a Cross Was Made Between Homozygous

question 25

Multiple Choice

Use the following information to answer the question.
$$\begin{array} { c c c } \text { Sex } & \text { Phenotype } & \text { Number } \\\text { male } & \text { wild } & 123 \\\text { male } & \text { yellow } & 116 \\\text { female } & \text { wild } & 240\end{array}$$
In a Drosophila experiment, a cross was made between homozygous wild-type females and yellow-bodied males. All of the resulting F?s were phenotypically wild type. However, adult flies of the F? generation (resulting from matings of the F?s) had the characteristics shown in the figure. How is the mutant allele for yellow body inherited?

• A) It is recessive.
• B) It is codominant.
• C) It is dominant.
• D) It is incompletely dominant.