In a gene mapping experiment,DNA from a strain that is gal+ pro+ lac+ is transformed into an E.coli that is gal− pro− lac−.Some resulting transformants are gal+ lac+ and some are pro+ lac+,but no transformants are gal+ pro+.Which gene is in the middle?
A) gal
B) lac
C) pro
D) cannot be determined
Correct Answer:
Verified
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