1·It is easily extracted, because it is one of a handful of genes found outside the cell nucleus, in structures called mitochondria.
它很容易提取，因为它是在细胞核之外、叫做线粒体的结构里被发现的少量基因之一。
2·Once synthesized, the histones move into the cell nucleus, where a section of DNA wraps around them to form a structure that resembles beads, or knots, on a string.
一旦合成，组蛋白就会进入细胞核，细胞核内的 DNA 片段会将组蛋白包裹起来，形成一种类似串珠或绳结的结构。
3·Erythrocytes in mammals are anucleate when mature, meaning that they lack a cell nucleus.
哺乳动物中的红细胞成熟时是无核的，这意味着它们缺乏细胞核。
4·The cell nucleus is at the upper left.
细胞核位于左上面。
5·The colorless, liquid component of the cell nucleus.
无色，液体组成部分细胞核。
6·Generally speaking, the genes exist in the cell nucleus.
遗传基因一般存在于细胞核里。
7·The cell nucleus swelled together with chromatin dissolving;
细胞核肿胀伴细胞核染色质溶解；
8·The mycorrhizal fungi affects the size and shape of the host cell nucleus.
春兰菌根真菌对其宿主的细胞核大小及形状有一定的影响。
9·The expression of PR: The positive expression of PR is pale brown in cell nucleus.
PR的表达情况：PR阳性表达定位于细胞核内，为棕黄色染色。
10·DHBV-DNA in the cytoplasm, cell nucleus and medium supernatant was assayed over time.
分时段检测细胞核、细胞浆及培养上清的DHBV - DNA。