3.
胚胎整体原位杂交法检测基因表达情况（×60）
A、D、G：nkx2.5在48 hpf各组胚胎心脏的表达情况（箭头所示）。B、E、H：tbx1在60 hpf各组胚胎心脏流出道的表达情况（箭头所示）。C、F、I：flk-1在24 hpf各组胚胎血管的表达情况（箭头所示）。与正常对照组相比，乙醇处理组胚胎nkx2.5、tbx1、flk-1的表达下调；与乙醇处理组相比，乙醇+dhfr mRNA组胚胎nkx2.5、tbx1、flk-1的表达上调。
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.