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You are doing lab work with a new species of beetle. You have isolated lines that breed true for either blue shells and long antenna or green shells and short antenna. Crossing these lines yields F 1 progeny with blue shells and long antenna. Crossing F 1 progeny with beetles that have green shells and short antenna yields the following progeny:
Blue shell, long antenna82
Green shell, short antenna78
Blue shell, short antenna37
Green shell, long antenna43
Total240
-Assuming that the genes are linked, what is the map distance between them in m.u.?
A) 33.3 m.u.
B) 25.0 m.u.
C) 49.5 m.u.
D) 8.0 m.u.
E) The genes are assorting independently.

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You are doing lab work with a new species of beetle. You have isolated lines that breed true for either blue shells and long antenna or green shells and short antenna. Crossing these lines yields F 1 progeny with blue shells and long antenna. Crossing F 1 progeny with beetles that have green shells and short antenna yields the following progeny:
Blue shell, long antenna82
Green shell, short antenna78
Blue shell, short antenna37
Green shell, long antenna43
Total240
-Assuming that the genes are linked, what is the map distance between them in m.u.?
A) 33.3 m.u.
B) 25.0 m.u.
C) 49.5 m.u.
D) 8.0 m.u.
E) The genes are assorting independently.

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The Answer is A

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