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Assume that investigators crossed a strain of flies carrying the dominant eye

marbe969

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Assume that investigators crossed a strain of flies carrying the dominant eye

Assume that investigators crossed a strain of flies carrying the dominant eye mutation Lobe on the second chromosome with a strain homozygous for the second chromosome recessive mutations smooth abdomen and straw body. The F1 Lobe females were then backcrossed with homozygous smooth abdomen, straw body males, and the following phenotypes were observed:
smooth abdomen, straw body     820
Lobe     780
smooth abdomen, Lobe       42
straw body     58
smooth abdomen     148
Lobe, straw body     152
Give the gene order and map units between these three loci.
a.   straw body - Lobe - smooth abdomen
b.   Lobe - smooth abdomen - straw body
c.   smooth abdomen - Lobe - straw body
d.    Lobe - straw body - smooth abdomen
e.   smooth abdomen – straw body – Lobe

Im between b and c

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marbe969 Author

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10 years ago

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