Assume Eight Different Strains of Fly Have Been Isolated,each Shows

question 68

Multiple Choice

Assume eight different strains of fly have been isolated,each shows a recessive white eye trait.Crosses are performed as follows (w) indicates white-eyed progeny, (R) indicates wild-type red eyes. $$\begin{array} { l l l l l l l l l } & \mathrm { A } & \mathrm { B } & \mathrm { C } & \mathrm { D } & \mathrm { E } & \mathrm { F } & \mathrm { G } & \mathrm { H } \\\mathrm { A } & \mathrm { w } & \mathrm { w } & \mathrm { R } & \mathrm { R } & \mathrm { w } & \mathrm { R } & \mathrm { R } & \mathrm { w } \\\mathrm { B } & & \mathrm { w } & \mathrm { R } & \mathrm { R } & \mathrm { w } & \mathrm { R } & \mathrm { R } & \mathrm { w } \\\mathrm { C } & & & \mathrm { w } & \mathrm { w } & \mathrm { R } & \mathrm { R } & \mathrm { R } & \mathrm { R } \\\mathrm { D } & & & & \mathrm { w } & \mathrm { R } & \mathrm { R } & \mathrm { R } & \mathrm { R } \\\mathrm { E } & & & & & \mathrm { w } & \mathrm { R } & \mathrm { R } & \mathrm { w } \\\mathrm { F } & & & & & & \mathrm { w } & \mathrm { w } & \mathrm { R } \\\mathrm { G } & & & & & & & \mathrm { w } & \mathrm { R } \\\mathrm { H } & & & & & & & & \mathrm { w }\end{array}$$
Based on these crosses,how many different genes are present and what strains have mutations in the same gene as does strain A?

• A) 2,B,E,and H
• B) 3,B,and C
• C) 3,B,C,and H
• D) 3,B,E,and H
• E) 4,B,and H

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Definitions:

John Gottman

A psychologist recognized for his work on marital stability and divorce prediction through extensive research on couples' interactions.

Invulnerable Responses

Ignoring, laughing, or being silent in response to a hurtful message.

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Displaying a behavior or attitude of agreeing or assenting passively, often without personal protest or the desire to give one's own opinion.

Active Verbal

Engaging in conversation with full attention and participation, often involving careful listening, responding, and asking questions.