Genetics and Reproduction

Learn about the many different structures that make up plant cells as well as what differentiates plant cells from animal cells.

Learn about the important plant functions of photosynthesis, respiration and transpiration

It took several scientists building on each other’s discoveries to come up with Cell Theory - one of the cornerstones of biology.

Learn how chemistry and genetics makes redheads stand out from the crowd.

Plants need to exchange gases and water with their environment as part of photosynthesis. Some plant cells have evolved specifically for this purpose.

Mitosis is an important part of cell division that helps organisms grow and repair themselves.

When you cut your finger, your immune system kicks in to protect you from pathogens.

Cloning makes it possible to bring extinct species back to life. But is that a good idea?

Astronauts can experience bone loss in space. To understand why, you need to know a bit about how bones are formed and maintained in your body.

A study on bird feeders and beak sizes shows how an everyday human activity can affect the evolution of another species.

Be a biochemist! Learn how to extract DNA from an onion and find out what DNA looks like.

When the cells of Henrietta Lacks were collected by medical researchers after her death in 1951, it changed the future of medicine.

This backgrounder explains the different ways that cells repair damage to DNA.

When fertilizers from agriculture get into lakes and rivers, big problems can result for aquatic ecosystems, food chains & webs!

When a person has cancer, CAR-T Therapy uses their own cells to destroy the cancer cells in their body.