11 pgcs were isolated from 55d goat and cloned to seconed passage , nor pgcs from 70th day goat embryonic genital . the presence of lif had no positive influence on the isolation of es - like cell 55d的胎儿获得11个pgcs集落，可传代2次，从70d胚胎的生殖腺没有分离到pgcs细胞集落。
The probability of cancer induction in this organ is comparatively low . the main concern is the genetic effects due to irradiation of this organ and the probability is proportional to the absorbed dose 在致癌方面，生殖腺对辐射的敏感性较低，主要的考虑是遗传效应，发生率与剂量成正比。
Primary mediastinal germ - cell tumors ( gcts ) without gonadal involvement are rare and can be divided into benign mature teratoma and malignant seminoma or nonseminoma 摘要无生殖腺体侵犯之原发性纵膈腔生殖芽细胞肿瘤为罕见之肿瘤，一般分为良性成熟畸胎瘤及包含精细胞瘤和非精细胞瘤在内的恶性肿瘤。
From the pcr result of fl / rl and f2 / r2 system , the positive rate of goat offspring genomic dna is 33 . 3 % ( 4 / 12 ) and 25 % ( 3 / 12 ) respectively . and the positive one is a female . then , we prepared genome dna of death goat offsprings from tongue , lung , liver , musule , skin , brain , germ gland , spleen , intestines , heart , and kidney 用f2 r2系统pcr检测f1代仔羊，阳性率为25 ( 3 12 ) ， 3只均为为流产羔羊，组织解剖后提取舌，肺，肝脏，肌肉，皮肤，脑，生殖腺，脾脏，小肠，心脏，肾脏共11种组织的总dna进行pcr检测，发现： f1 r1系统， 3只羔羊肾脏中都没有外源dna存在，而其他组织有不同程度的存在。
( 3 ) the chromosomes obtained by air - drying and chromosomes from the silkworm genital gland are similar in shape . but the numbers and the length of the chromosomes are obviously different . the chromosomes obtained from the genital gland have little difference in length , while the chromosomes of bmn cell are different in length very much 但是，在染色体的数目上有显著的差异。另外，染色体间的长短差别也非常明显。由家蚕生殖腺得到的减数分裂中期染色体和胚胎得到有丝分裂的中期染色体，其染色体长短差异不明显，而binn细胞的中期染色体长短非常不一致，差异非常显著。
