People looking for a sperm donor can go to a fertility clinic, ask a friend to donate or look for a donor online, including ...

At least, that’s how many she knows about. When her mom, a lesbian single mother by choice, conceived her using a sperm donor, the bank said only five other families had used the same donor and ...

Feb. 4, 2025 — Research has shown that a potential new targeted therapy for childhood brain cancer is effective in infiltrating and killing tumor cells in preclinical models tested in mice.

Many cells in multicellular organisms are specialised. They have specific roles in the organism of which they are part. Their structure is adapted to their function. They are often grouped ...

Oxide-ion conductors are important energy materials. Here, the authors found a tellurite-based oxygen ion conductor highlighting the interplay of secondary bond interactions and Grotthuss-like ...

This is called photosynthesis. The basic structure of a plant cell is shown below. Photosynthesis relies on many structures in the cell all working together, each playing its role. The diagram ...

For sex sorted semen, the ability to shift the gender ratio of a calf crop comes from the fact that gender is determined by the sperm cell that fertilizes the egg. Sperm cells that result in a heifer ...

Feb. 10, 2025 — Influenza A virus particles strategically adapt their shape -- to become either spheres or larger filaments -- to favor their ability to infect cells depending on environmental ...

A CRISPR-based system that erases itself from fly populations may offer a safer approach to tackling insecticide resistance while minimizing ecological risks.

Download poster sets, covering topics like propaganda and the roles of individuals during the Holocaust, to use in your classroom. Are you an educator looking for resources for your classroom? Please ...