In the flowering plant world, reproduction means an intricate succession of events. It begins when a pollen grain that carries the sperm cells lands on the top of the pistil, the female reproductive ...

Meghan Holmes is a writer and documentarian specializing in scientific topics such as the environment, invasive species, sustainability, and food issues. She holds a master's in Southern Studies from ...

Cells don't express all the genes they contain all the time. The portion of our genome that encodes eye color, for example, doesn't need to be turned on in liver cells. In plants, genes encoding the ...