zygote

However, some embryos may develop from abnormally fertilized zygotes like tripronuclear zygotes (3PN).

In science: an individual organism whose body contains cell populations derived from different zygotes, of the same or different species.

After IVF, the putative zygotes were washed three times in Hepes-buffered TCM-199 and vortexed for 5 min to remove cumulus cells layer.

From fertilization to metaphase of the first meiosis, the actin layer was equally distributed over the cortex of zygotes. At late anaphase, the actin distribution at the polar body sites became very sparse and an actin-poor circular region was recognized at the animal pole.

Successful applications of ssODN have been demonstrated in various animal models through direct injection of CRISPR/Cas9 components into zygotes [28-30] or in human ESCs and iPSC for modeling human diseases [31-33].

The research team could not obtain human zygotes with this mutation on both copies of the genome (a rare homozygous genotype).

BERKELEY, Calif., January 13, 2017 -- Researchers here have found a way to reprogram mouse embryonic stem cells so that they exhibit developmental characteristics resembling those of fertilized eggs, or zygotes.

The obvious answer to curtailing unwanted and unnamed zygotes includes access to health care through family planning clinics, access to birth control and sex education.

However, as discussed by Matthew Porteus of Stanford and Christina Dann of Indiana University in the June 2015 issue of Molecular Therapy, several technical obstacles may preclude successful zygote injection in humans, including the fact that "only a fraction of injected zygotes give rise to viable offspring.

In mouse embryos, the gene is active in zygotes; its RNA then dips in abundance but rises again at the eight-cell stage.