Forty years ago, a postdoctoral researcher named James McGrath who would go on to spend more than three decades as a clinical ...

The age-old debate of whether the chicken or the egg came first is explored through historical and evolutionary contexts.

本文作者：sysoon26 岁的泰勒再次像往常一般，因为普通的感冒、咽喉疼痛在母亲的陪同和搀扶下走进了诊室——从小时候开始，她的免疫力就低于正常人，每一次感冒的症状都异常严重，并且恢复得比常人更慢。此次接诊泰勒的医生，听着她的叙述皱紧了眉头，26 ...

So successful was the team's shell-less culture system that several chicks hatched successfully at the end of the normal ...

One important question to address is: How are ES cells derived? In human, the fertilization of an egg by a sperm generates a zygote that thirty hours later begins to divide. By the third to fourth ...

An egg becomes fertilized when a sperm penetrates it, creating a zygote. For the first eight weeks, the developing baby is called an embryo. It looks like a tadpole. At about three weeks ...

See Table 1 for a review of genetic terminology. During oogenesis and spermatogenesis, each parent contributes 23 chromosomes to the zygote through a process of chromosomal reduction called ...

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 ...

In a new study, researchers have identified a trio of proteins that serve as the critical key in allowing sperm to fuse with ...

Harley-Davidson has been making top of the line bikes under the Custom Vehicle Operations - or CVO - name for 25 years. Here ...

Using Google’s AlphaFold, researchers identified the bundle of three sperm proteins that seem to make sexual reproduction possible.

It’s rare for medical research to be truly ‘groundbreaking’, but the case study from China showing that stem cell therapy can ...