In Drosophila (fruit flies), jammed wings (J), daughterless (da), curly wings (Cy), star eyes (S), and a black body (b) are determined by genes located on the same chromosome.
Gene Combination Recombination Frequency J and Cy34.9 J and da1.7 S and Cy4.8 Cy and b42.4 S and da38 b and S47.2
Which of the following options shows the gene sequence on this chromosome?
a. b J da Cy S
b. J S da Cy b
c. b J Cy da S
d. S J da Cy b
e. S Cy J da b
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