A. The two genes are linked and, therefore, assort independently. B. The two gen

Question

A. The two genes are linked and, therefore, assort independently.

B. The two genes are not linked and, therefore, assort independently.

C. The two genes are linked and, therefore, do not assort independently.

D. The two genes are not linked and, therefore, do not assort independently.

Case Study (questions #8-#14): You previously conducted an analysis of linkage in Drosophila melanogaster. In this analysis, you determined if two genes the sepia eye (se) and aldehyde oxidase (ao) genes were assorting independently. In a test cross, a female heterozygous at both loci was crossed with a male that was homozygous recessive at both loci. If the two genes assort independently (are not linked), you would expect equal numbers of progeny with each of the four possible phenotypes: ao*/se, ao se, ao /se and ao/se. The actual numbers of offspring obtained from the cross are given below. Using Microsoft Excele, perform an appropriate statistical test to evaluate the data and answer questions #8-#14. Phenotype ao* /se ao* /se ao /se* Number of Progeny 35 15 14 36

Explanation / Answer

Ans- option (C) is correct i.e. the two genes are linked together so they do not assort indipendantly.

Because the recombination frequency of both genes is greater as progeny have more recombinant.

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