gamete (ˈɡæmiːt; ɡəˈmiːt) n (Biology) a haploid germ cell, such as a spermatozoon or ovum, that fuses with another germ cell during fertilization [C19: from New Latin, from Greekgametēwife, fromgamosmarriage]
In humans, early investigations by light microscopy found that hPGCs have a large size with a large nucleus and prominent nucleolus in the yolk-sac endoderm of embryonic day 24 (E24), which migrated into the developing genital ridges at E28.14Witschi suggested that the hPGCs migrated within the...
Figure 2.The sMics are dispersible for development but are required for gamete development. (A) Method of sMic removal with a glass pipette. The resulting embryos develop into a larva (B)–(E), form an adult rudiment (D, E, arrow in E), and metamorphos into an adult (F) that does...
A broad review of comparative aspects of germ cell formation will not be attempted (see 78, 79, 1 for general reviews). Most is known of the genes that control germ cell formation from systematic genetic screens in invertebrates. In Drosophila and C. elegans, maternal effect mutations, in wh...
Therefore, it was possible that blastocysts produced by inter-subspecies SCNT from wild-derived strains would be of low quality for ntESC derivation. Furthermore, we did not know if the culture conditions for derivation of ESCs in laboratory mice could also be applied to the wild-derived ...
Results from this study showed that a higher percentage of morphologically normal oocytes were produced during the cooler season than during the warmer season, while the percentage of fertilized oocytes that developed to the 2-cell, 8-cell, and morula stages, were also greater during the cooler ...
Answer to: A(n) ___ is to bacteria as a ___ is to animal cells. A. retrovirus; virus B. phage; prophage C. prophage; provirus D...
Granulosa cells are major players in this occurrence, being the somatic element of the female gamete development. They participate directly in the processes of oogenesis, building the cumulus-oocyte complex surrounding the ovum. In addition to that, they have a further impact on the reproductive ...
While prior research has established that Plasmodium gametocytes sequester in the bone marrow and can influence resident stem cells, the question of why they would choose this compartment and these cells remained a mystery. This study, for the first time, shows that being in the presence of mesen...
(IMCB), A*STAR (Agency for Science, Technology and Research), Singapore, Republic of Singapore; 5Department of Biochemistry, National University of Singapore (NUS), Singapore, Republic of Singapore In mammals, primordial germ cells (PGCs) are the embryonic cell population that serve as germ cell...