英语翻译请问germ line在发育生物学中：1.怎么翻译（有说“生殖细胞系”的、有说“种系”的、有“生殖系”的...）2.具体指什么请详细说明,附带出处更好!视各位付出的努力,我会酌情再附加

英语翻译请问germ line在发育生物学中：1.怎么翻译（有说“生殖细胞系”的、有说“种系”的、有“生殖系”的...）2.具体指什么请详细说明,附带出处更好!视各位付出的努力,我会酌情再附加
英语翻译
请问germ line在发育生物学中：
1.怎么翻译（有说“生殖细胞系”的、有说“种系”的、有“生殖系”的...）
2.具体指什么
请详细说明,附带出处更好!
视各位付出的努力,我会酌情再附加悬赏财富值.

英语翻译请问germ line在发育生物学中：1.怎么翻译（有说“生殖细胞系”的、有说“种系”的、有“生殖系”的...）2.具体指什么请详细说明,附带出处更好!视各位付出的努力,我会酌情再附加
生殖细胞系
说的是跟生殖细胞有关的细胞系.
In biology and genetics, the germline of a mature or developing individual is the line (sequence) of germ cells that have genetic material that may be passed to a child.
For example, sex cells such as the sperm or the egg, are part of the germline. So are the cells that produce sex cells, called gametocytes, the cells that produce those, called gametogonia, and all the way back to the zygote, the cell from which the individual developed.
Cells that are not in the germline are called somatic cells. For example, all cells of the mammalian liver are somatic. If there is a mutation or other genetic change in the germline, it can be passed to offspring, but a change in a somatic cell will not be.
Germline cells are immortal, in the sense that they can reproduce indefinitely. This is largely due to the activity of the enzyme known as telomerase. This enzyme extends the telomeres of the chromosome, preventing chromosome fusions and other negative effects of shortened telomeres. Most somatic cells, by comparison, can only divide around 30-50 times due to the Hayflick limit. Certain somatic cells, known as stem cells, also express telomerase and are potentially immortal [1].
Not all multicellular organisms differentiate cells into somatic and germ lines. Notably, plants have no germline cells separate from stem cells.
Germline can refer to a lineage of cells spanning many generations of individuals—for example, the germline that links any living individual to the hypothetical first eukaryote of about 2 billion years ago, from which all plants and animals descend.