Dozens of labs around the world are striving to grow models of human embryos to study development, fertility and therapies.

A stem-cell derived human embryo model showing blue cells (embryo), yellow cells (yolk sac) and pink cells (placenta). Scientists have grown an entity that closely resembles an early human embryo ...

This tissue forms sex cords which will develop into testes if the bird becomes a male or into the ovary if the bird becomes a female. Several thousand cells near the base of the yolk sac become very ...

Their egg cases are sometimes referred to as mermaid's purses, and occasionally as Devil's purses. The egg is a capsule that contains a developing animal and a yolk sac which the young gets its ...

The fetal membranes consist of the chorion, amnion, yolk sac, and allantois. The chorion has three layers: cytotrophoblastic, chorionic connective tissue, and basement membrane. The chorion lies ...

Separated egg yolks can be kept in an airtight container in the fridge for a couple of days. If you wish to freeze them separately, mix them with either sugar (for use in sweet dishes: one ...

However, a gestational sac can be identified on transvaginal ultrasound as early as 4.5-5 weeks gestation and a yolk sac is visible on ultrasound by as early as 5 weeks. A fetal pole with heart ...

Dr. Jessica TilmanScientific Group LeaderAxol Bioscience In this interview, Dr. Tilman explains the functions of ...

The YOLK Solar Cow is helping to improve access to electricity and education in developing nations. Placed near schools, the solar charging system that literally looks like a cow has “power milk ...

The article discussed the nutritional benefits of egg yolks, contrary to their reputation for being high in cholesterol. It highlighted their richness in vitamins A, D, E, and K, plus choline and ...

However, whether BCAS2 has other functions within the nucleus remains largely unknown. Here, we show that BCAS2 is essential for primitive hematopoiesis in zebrafish and mouse embryos. The activation ...