The gene is composes the chromosome the hereditary unit, and the proof gene makes the line spread in the chromosome.

基因是组成染色体的传单位，并证明基因在染色体作直线排列。

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The sinusoids are packed with RBC's in this case of hereditary spherocytosis. The osmotic fragility of spherocytes is increased, because the RBC's have decreased surface area per unit volume.

遗传性球形红细胞增多症中，窦状隙被RBC塞满，球形红细胞的渗透性脆性增加，因为RBC每单位体积的表面积减少。

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Genes, simply speaking, are hereditary basic function unit.

所谓基因，简单地说，就是遗传的基本功能单位。

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Professor Bob Morris, honorary senior research fellow at University College London's Constitution Unit, says it could actually be easier to abolish hereditary peers in the Lords than make changes to male primogeniture.

BBC: UK Politics