| 词条 | Nebenkern |
| 释义 |
The nebenkern is a mitochondrial formation in the sperm of some insects such as Drosophila. After the completion of meiosis, spermatid mitochondria wrap around each other to form a spherical aggregate, adjacent to the nucleus.[1] The nebenkern proceeds to elongate into a double-stranded helical structure.[1][2] During flagellum elongation the nebenkern unfolds and the two derivatives (major and minor mitochondrial derivatives) elongate down the bundle of microtubules that constitute the axoneme core of the flagellum]].[3] Notes1. ^1 {{cite web |url=http://8e.devbio.com/article.php?ch=19&id=194 |title=Fuzzy Onions and the Nebenkern |publisher=Sinauer Associates, Inc |accessdate=February 29, 2012 |deadurl=yes |archiveurl=https://web.archive.org/web/20070207233329/http://8e.devbio.com/article.php?ch=19&id=194 |archivedate=February 7, 2007 |df= }} 2. ^{{cite web |url=http://www.merriam-webster.com/medical/nebenkern |title=The Mirriam-Webster Unabridged Dictionary |publisher=Mirriam Webster, Inc. |accessdate=February 29, 2012}} 3. ^{{citeweb|url=http://amigo.geneontology.org/cgi-bin/amigo/term_details?term=GO:0016006|date=May 27, 2013|title=Nebenkern (Gene Ontology term)|author=Michael Ashburner}} 2 : Germ cells|Drosophila |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。