As shown in Table 1, significantly more embryos developed to the morula/blastocyst and blastocyst stage when vitrified within the cryoloop compared to those vitrified using OPS. Significantly ...

zygote, morula, blastocyst, embryo, and fetus; and that conception is defined as the fertilization of the ovum of a female by a sperm of a male.” ...

The fusion of sperm and egg gametes during human fertilization establishes a diploid zygote and initiates a series of cell divisions that result in a multicellular embryo. The blastocyst stage is ...

This useful study by Gao et al identifies Hspa2 as a heterogeneous transcript in the early embryo and proposes a plausible mechanism showing interactions with Carm1. The authors propose that ...

A fertilized egg can split in two, giving rise to twins, before the zygote becomes a morula, or around when it becomes a blastocyst. But the study authors found that just because a zygote splits ...

Mature ova are released from the ovary into the oviduct where they may be fertilised by sperm to form a zygote. In humans, fertilisation happens inside the woman’s body. This is a process called ...

Most animals carry out sexual reproduction. Sexual reproduction involves the joining of two sex cells or gametes – the sperm (male gamete) and the egg or ovum (female gamete). The male and ...