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RT-PCR analysis of snoRNAs amplified from small RNA cDNAs of chicken embryos at stage HH34. A DNA ladder on each side indicates the size of the fragments. NTC, Non-template control. M, DNA marker. (A) Expression of the five guide box C/D snoRNAs and nine guide boxH/ACA snoRNAs. (B) Expression of the ten orphan box C/D snoRNAs and ten orphan box H/ACA snoRNAs.
