A 40 - base polymorphic repeat sequence located in the 3 ' - untranslated region of the dat gene was purified and amplified by polymerase chain reaction ( pcr ) 将位于多巴胺运输器基因3 '端未转译区段的40 -碱基多形性重复序列予以纯化、经聚合酶链锁反应放大。
Most of mfh arising in the kidney are storiform - pleomorphic type as seen here . distinction from sarcomatoid renal cell carcinoma may be difficult in some cases 本肿瘤瘤体大并向周围浸润生长，常为多形性、编织型及炎症型。前者较难与肉瘤样肾细胞癌区别。
More florid ductal epithelial hyperplasia of the breast is shown here . there is a slightly increased risk ( 1 . 5 to 2 times normal ) for breast carcinoma when such changes are present 多形性乳腺上皮细胞增生。患乳腺癌的风险轻微增加（为正常的1 . 5到2倍） 。
The developing sequence of nerve cells is in order of medial pyramidal layer , lateral pyramidal layer and multiform lamina , medial granular layer and lateral granular layer 大脑新皮质各层神经元发育顺序依次为：内锥体层外锥体层、多形层内颗粒层外颗粒层。
" dysmorphic erythrocytes are found in the urine of patients with glomerular bleeding , whereas isomorphic erythrocytes characterize nonglomerular or urological hematuria . 利用尿中的红细胞是畸形的（也就是多形型）还是比较正常的（也就是均一型）来判断炎症的起源。
But they only work in a small percentage of people . and certain tumors , including the aggressive brain cancer glioblastoma multiforme , respond poorly to such drugs 但是他们只在一小部分人群中有效。某些肿瘤包括侵袭性颅脑肿瘤多形性胶质母细胞瘤对这些药物疗效很差。
The formation of small nests and irregular sheets is certainly more consistent with ductal carcinoma . but histiocytoid / pleomorphic variant of lobular carcinoma can not be excluded 小巢状、不规则片状的生长方式更符合导管癌，但是组织细胞样/多形性小叶癌也不能除外。
The neoplastic epithelial cells within the duct show minimal hyperchromatism and pleomorphism , but they have holes with sharp margins as though punched out by a cookie cutter 导管内的肿瘤上皮细胞显示出轻微的着色过深与多形性，但它们的空洞边缘锐利就好象是用小甜点切割刀切成的一样。
The most common form of this condition , polymorphous light dermatosis , generally affects areas of skin that have not got accustomed to the sun . its cause is high uva radiation 这种情况下最常见的发病症状就是多形性光皮肤病，主要是病变区皮肤不适应太阳光，这是由强烈的紫外线照射引起的。
It was difficult to confirm the role of sperm membrane protein during mammalian fertilization and embryogenesis for the multiple configuration and lack of purified protein of sperm membrane proteins 由于精子膜蛋白结构上的多形性、功能上的复杂性，加之缺乏有效的分离纯化手段，有关精子膜蛋白的研究一直是一个难点。
