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Mapping of lethal 7A to CG40002. A) Single embryo PCR mapping positions CG40002 in the lethal 7A region. B) sePCR of DNA from l(3)fsa2mutants using CG40002, med21 and ucrh primers. The asterisk marks a band that is amplified only from l(3)fsa2/TM3 animals and likely corresponds to a polymorphic ucrh sequence found on this particular TM3 balancer chromosome.
