What are the mechanisms of sperm selection in the female reproductive tract?

Medline ® Abstract for Reference 4 of 'Intracranial germ cell tumors'. 4: Central Nervous System Tumours, 5th ed, WHO Classification of Tumours Editorial ... Biopsy. A doctor may recommend performing a biopsy to determine the type of germ cell tumor in the body. This is done by removing tissue or fluid from the tumor ... Feb 18, 2016 ... Our study investigated whether it is possible to produce germ cell-free salmon in F0 by using CRISPR-Cas9 to knock out dnd, a factor required for germ cell ... Additionally, the Department of Animal Biology houses the Penn Vet Center for Animal Transgenesis and Germ Cell Research, which enables the genetic manipulation ... Nov 30, 2020 ... Primordial germ cells (PGCs) are germline competent cells which form the functional gametes of the animal. The potential usage of avian PGCs ... Jun 8, 2006 ... Here we show that chicken PGCs can be isolated, cultured and genetically modified while maintaining their commitment to the germ line. Apr 11, 2018 ... Most types and stages of germ cell cancers of the ovary are treated the same way, with surgery and chemotherapy (chemo). Testicular cancers start in germ cells. These are cells in the testicles that make sperm. These tumors often start in the testicles. Cell. 1999 Jan 22;96(2):165-74. doi: 10.1016/s0092-8674(00)80557-7. Author. Germ line refers to the sex cells (eggs and sperm) that sexually reproducing organisms use to pass on their genomes from one generation to the next.