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The Following Example of Gene Regulation Involves Genes R+ and A+.Loss

Question 6

Essay

The following example of gene regulation involves genes r+ and a+.Loss of either gene results in a similar phenotype.

a)In complementation testing,would these genes appear as one gene or two distinct genes? Explain.

b)What ratio might be generated by this example in a typical F2 data set where an F1 organism of phenotype r+/r ;a+/a had been selfed? Explain terms clearly. The following example of gene regulation involves genes r<sup>+</sup> and a<sup>+</sup>.Loss of either gene results in a similar phenotype. a)In complementation testing,would these genes appear as one gene or two distinct genes? Explain. b)What ratio might be generated by this example in a typical F<sub>2</sub> data set where an F<sub>1</sub> organism of phenotype r<sup>+</sup>/r ;a<sup>+</sup>/a had been selfed? Explain terms clearly.

Correct Answer:

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a)In complementation testing,an r/r ;a

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