A cell that undergoes meiosis to form gametes, typically in sexual reproduction.

The process by which gametes (sperm and eggs) are produced in animals and plants.

The haploid stage in the life cycle of plants, algae, and fungi that produces gametes.

High-energy electromagnetic radiation emitted by the nucleus of certain radioactive substances.

Referring to a flower whose petals are fused together to form a tube-like structure.

Having leaves that are fused together, often referring to certain types of plants.

A group of nerve cell bodies located outside the central nervous system.

The death of body tissue due to a lack of blood supply, often caused by infection or injury.

A specialized intercellular connection that allows for direct communication between adjacent cells.

An interruption or break in a biological or physical structure, such as a gap between cells in tissues.