If both of a pair of homologous chromosomes are missing, nullisomy results.

如果一对同源染色体都了，称为体。

To report a case of bilateral upper lid lash loss caused by trichotillomania.

报告一因罹患拔毛症而导致两眼上眼睑睫毛的病例。

The condition in Kerry Blue Terriers is sometimes called progressive neuronal abiotrophy (PNA).

在凯利蓝梗中，该疾病又称为渐进型神经活力（PNA）。

Single nerve fiber recording from the ear's chorda tympani show that same lack of specificity.

从耳朵的鼓索所记录的单一的神经元展现出相同的特征。

Results showed the delation of P16 were high in ALL in 36 cases of leukemia patients.

结果36例白血病中以急性淋白血病（ALL）P16表达率最高。

Rob's previous research has investigated the palaeobiology of "missing links" and evolutionary relationships of early vertebrates.

罗布早期的研究调查了“环节古生态学”早期脊椎动物的进化关系。

Results A 13389G deletion in exon 6 was characterized in propositus, and this mutation led to frameshift.

结果先证者表现为抗凝血酶基因外显子613389G,引起移码突变。

Our marriages system can't be carried outwell because of the long – term defect of invalid marriages system.

无效婚姻制度的长期使我国的结婚制度得不到很好的贯彻。

Aphemia is caused by organic pathological changes in special area of cerebrum due to cerebrovascular disease(CVD).

中风语症是由于脑血管意外致大脑一定域发生器质性病变而造成的语言,即口语、书面语的表达理解障碍。

Objective:To assess the current state of edentia and prosthetic treatment of elderly people in a small community of Beijing.

了解某社老年人群中口腔牙列状况及修复现状,探讨我科完成保健任务新措施。

In MP method, gaps are coded as missing data, the fifth character and treated by simple indel coding method respectively.

在最大简约法中，空位分别被编码为丢的数据、第五性状简单插入编码。

The currency's issue in Jiangxi's also ungeared to it's circulation, which played a bad effect to its trade and people's living.

江西地方货币的推广困难与传统乡村金融体系的势力强大新式金融组织密切相关。

Objective:To investigate the relationship among the congenital hypodontia of mandibular incisor and malocclusion and the variation of medial distal dimension of mandibular canine.

探讨下颌恒切牙先天情况,与牙颌畸形的关系以及下尖牙近远中径的变化。

But if the gene copy contains disabling typos or is missing pieces of the original, such as the promoter, it will become a pseudogene.

但如果基因出现短（像是启动子）或序列发生错误使基因损坏，它们就成了伪基因。

Dentin matrix protein 1 (DMP1) is expressed in both pulp and odontoblast cells and deletion of the Dmp1 gene leads to defects in odontogenesis and mineralization.

牙本质基质蛋白-1（DMP1）在牙髓成牙本质中均有表达，Dmp1基因可导致牙齿发育矿化障碍。