1. the act or process of creating 2. the fact of being created or produced 3. something that has been brought into existence or created, esp a product of human intelligence or imagination 4. the whole universe, including the world and all the things in it 5. (Clothing & Fashion) an ...
During the normal process of spermatogenesis, the gonocytes as spermatogonia B cross the BTB and reach the adluminal compartment [Stanton, [148], [149], [150], [151]]. This BTB constitutes a sort of ‘dynamic fence’ corralling a basal compartment that contains the stem cells, i.e. ...
1.GeneticsThe process of cell division in sexually reproducing organisms that reduces the number of chromosomes from diploid to haploid, as in the production of gametes. 2.Rhetorical understatement. [Greekmeiōsis,diminution, frommeioun,to diminish, frommeiōn,less; seemei-inIndo-European roots.] ...
aDiploid hybrid females (HL) have premeiotic genome endoreplication in the minor portion of oogonia. This process enables the formation of bivalents during the pachytene stage of meiosis, as each chromosome has a chromosomal copy to pair with. Afterward, such oocytes progress to diplotene, and ...
However, in bread wheat, it was proposed that a balance is prevalent among the subgenomes, without any subgenome dominance34,40. Nevertheless, tissue-, growth stage-, and environmental cue- dependent dominance have been reported as the cause of developmental process and environmental adaptations44,...
: bindin; lysin; sexual conflict; reinforcement; positive selection; fertilization; heterozygote advantage 'Two things that are certain in life are death and taxes.' (Benjamin Franklin 1789) Before either death or taxes, generally comes fertiliza- tion, the interaction and union of two gametes. ...
. This process has resulted in the vast majority of proteins that function in cytoplasmically inherited organelle compartments being encoded by the nucleus (Millar2007; Meisinger et al.2008; van Wijk and Baginsky2011; Muthye and Lavrov2018). The genes and gene products that are still retained ...
To the extent US state legislatures let the courts rule on the enforceability of surrogacy contracts, or punt on passing laws to either prohibit surrogacy completely, or to prudently regulate industry-wide dangers with a more nuanced, informed, and deliberative policymaking process; to that extent...
uncovered a phenomenon that creates a segmental rather than a continuous partial tetraploidy. In the sterlet, most chromosomes or chromosome arms were found to be in either a diploid or a tetraploid state. The loss of entire chromosomes can be seen as a fast stochastic process for rediploid...
the general public regards the technology with awe, but some fellow scientists aren’t as convinced. Some have argued that perhaps the genes of people with infertility should not be passed to the next generation. The process is too artificial, they argue; the resulting embryos—and babies—may...