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A) RT-PCR analyses of Ctnnb1 in testes from 5 day-old ΔCtnnb1 and control mice. As indicated, a shorter RT-PCR fragment is produced from transcripts derived from the recombined Ctnnb1tm1Mmt allele. B) Immunofluorescence analysis of CTNNB1 expression in testes from 5 day-old ΔCtnnb1 and control mice. Scale bar (lower right) is valid for all images. Arrow = germ cells.
