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Fig. 7. Results of in vitro maturation of oocytes. GV-intact oocytes were collected
from control and rescued female mice and allowed to undergo meiotic maturation
in vitro. (A,B) The percentages of oocytes that had emitted the first polar
body (PB1), undergone germinal vesicle breakdown (GVBD) but not emitted the
first polar body, emitted an oversized polar body (oversized PB1), or remained
GV-intact after 16 hours (A) or 19 hours (B). Values above the bars show the
actual numbers of oocytes with the given appearance per total number of
oocytes in a group.