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In Soreflies (A Hypothetical Insect), the Dominant Allele, L, Is

Question 29

Multiple Choice

In soreflies (a hypothetical insect) , the dominant allele, L, is responsible for resistance to a common insecticide called Loritol. Another dominant allele, M, is responsible for the ability of soreflies to sing like birds. A true-breeding mute, Loritol-resistant sorefly, was mated to a true-breeding singing, Loritol-sensitive sorefly, and the singing, Loritol-resistant female progeny were testcrossed with true-breeding wild-type (i.e., mute, Loritol-sensitive) males. Of the 400 total progeny produced, 117 were mute and Loritol-resistant, 114 could sing and were Loritol-sensitive, 83 could sing and were Loritol-resistant, and 86 were mute and Loritol-sensitive. A chi-square test is done to determine if there is equal segregation of alleles at the L locus. What will be the chi-square value obtained and how many degrees of freedom would be used to interpret this value?


A) 0.09 and one degree of freedom
B) 0.56 and two degrees of freedom
C) 0 and one degree of freedom
D) 9.72 and four degrees of freedom
E) A chi-square test is not the appropriate statistical test to answer this question.

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