The present study was designed to investigate effect of first intron on ovalbumin promoter activity using immortalizatio......

以2岁奶牛输卵管为材料，用胰酶消化法分离得到了牛输卵管上皮细胞。输卵管上皮细胞在DMEM／F12培养基中生长良好。用一代牛输卵管上皮......