(B) Comparison of mean relative changes of miRNA level at 20 h of culture ssc-miR-205 in oocytes is less than ssc-miR-10b, ssc-miR-22, or ssc-let-7a. Error bars = SD. Asterisks indicate statistical significance (p-value) of one-tailed paired t-test, (*p < 0.05, **p < 0.01). 