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- sex chromosomal disease 性染色体病
- Objective To discuss the correlation between sex chromosomal abnormalities and gonadal dysgenesis. 目的探讨性染色体异常对性腺发育的影响。
- A chromosome that is not a sex chromosome. 常染色体非性染色体的一个常染色体
- Mammals normally have two sex chromosomes. 哺乳动物正常情况下有两种性染色体。
- When cancer is viewed as a chromosomal disease, carcinogens, rare genetic syndromes and accidental mitotic errors can initiate carcinogenesis by inducing random aneuploidies. 如果将癌症视为染色体疾病,那麽致癌物质、罕见遗传病症以及有丝分裂的意外出错,都会经由随机造成的非整倍体而促使癌症发生。
- Humans have 22 chromosome pairs plus two sex chromosomes. 除了两个性染色体之外,人体有22对染色体。
- But unlike humans, the X and Y are not sex chromosomes. 但是与人类不同的是,其X与Y染色体却不是性染色体。
- Conclusions:Karyotype analysis is one of the main approaches in diagnosis of the chromosomal diseases. 结论在智力低下与性发育不良患者中,染色体检查是必要的诊断方法。
- There is increasing evidence that sperm DNA anomalies may lead to infertility,abortion,stillbirth,fathead and chromosomal diseases. 传统的精液检查往往不能找到精子DNA完整性异常患者的不育原因,因此对这部分患者进行精子DNA完整性检查具有更重要的意义。
- Homogametic sex The sex with homologous sex chromosomes, in mammals, designated XX. 同配性别:指有相同性染色体的性别,在哺乳动物中,它用XX来表示。
- Heterogametic sex The sex with dissimilar sex chromosomes, one (in mammals the Y chromosome)being shorter than the other(the X chromosome). 异配性别:具有不相同的性染色体,一条(哺乳类中为Y染色体)比另一条(X染色体)短一些。
- From the cytogenetic perspective, only a small proportion of fish species have heteromorphic sex chromosomes. 几十年的细胞遗传学研究表明,鱼类性别决定几乎包括了动物的所有性染色体类型。
- Unlike other sex chromosome aneuploidy, there are no characteristic physical features for triple X patients. 由于大部分患者缺乏明显的表现型特征,造成本综合征有相当大的鉴别难度。
- His disease was complicated by pneumonia. 他的病因肺炎并发症而变得更严重。
- Karyotype reveal that in most cells all but sex chromosomes are present as two copies, referred to as homologous pairs. 除了性染色体外,大多数细胞的染色体组成对出现,称同源染色体对。
- All the new genes might be located at euchromosomes but MMSA-1 at sex chromosome. 除MMSA-1可能定位于性染色体,其余均可能定位于常染色体;
- We analysed the karyotype and had a discussion on the sex chromosomes of Elaphodus cephalophus. 本文通过核型分析,对毛冠鹿的性染色体进行了初步的探讨。
- The researchers revealed the animal has 52 chromosomes, including 10 sex chromosomes. 研究人员发现,鸭嘴兽有52条染色体,其中10条为性染色体。
- While humans have two sex chromosomes, the X and Y, the platypus has 10, with five of each kind. 最近,鸭嘴兽基因序列的解读最终揭开了这种神秘生物的秘密:它比我们想象的还要古怪神奇。