Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
RT–PCR on liver RNA from E19 mice. Exons 8 and 9 of Fgfr1 are alternatively spliced. 8L-6R PCR product was digested with PstI, which detects the mutation (indicated by a black box in exon 7) carried by the mutant BAC. Embryos 3 and 7 were carrying and expressing the BAC transgene.
