在包含致病基因的一段染色体上，遗传标记分布越密集，则致病基因定位越精确。
The more closely spaced are the markers on the chromosomal segment containing the disease locus, the accurately can one localize the disease gene.
每次分裂后，端粒变短一段时间后可能发生的一件事是染色体上的基因片段会断裂。
So after each division, the telomeres get shorter and one of the things that may happen after a while is that pieces of the genes themselves get broken off the Chromosomes.
这些蛋白是由位于6号染色体上的一段称为主要组织相溶性复合体基因，MHC编码的。
These proteins are encoded by genes that are grouped on a part of chromosome 6 called the major histocompatibility complex, or MHC.
有一段时间，我一天就吃一个苹果，我自己动手弄头发，染色并且拉直。
I ate an apple a day, period. I peroxided my hair, ironed it straight.
布莱克本和卓斯塔克测定，端粒中一段特殊的DNA序列在细胞分裂染色体自我复制时保护了染色体免受损耗。
Blackburn and Szostak determined that it was a specific DNA sequence in the telomeres that kept chromosomes from fraying whenever they were copied when a cell splits in two.
Page推测，这个综合症可能是由于Y染色体重组时出错，导致染色体中不小心出现了一段中心没有空隙的回文。
The syndrome may be the result of Y chromosome recombination gone awry, Page speculates, when the chromosome inadvertently becomes a palindrome with no gap in the center.
基因是存在于染色体上的一段高度保守序列，其蛋白产物作为转录因子也是高度保守的。
Homeobox genes (Hox genes) are some highly conserved DNA sequences on the chromosomes. The protein products of Hox genes, as transcription factors, are also highly conserved.
已经知道该片段是一段调节序列，不同之处在于狗的第15染色体，与已知的名叫IGF1的基因相邻。IGF1指的是胰岛素状生长因子1。
Known as a regulatory sequence, the difference is on dog chromosome 15 next to a previously known gene named IGF1, for insulin-like growth factor 1.
已经知道该片段是一段调节序列，不同之处在于狗的第15染色体，与已知的名叫IGF1的基因相邻。IGF1指的是胰岛素状生长因子1。
Known as a regulatory sequence, the difference is on dog chromosome 15 next to a previously known gene named IGF1, for insulin-like growth factor 1.
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