Gamete of a flowering plant, similar to sperm cells in mammalian organisms.
Appears in modules:
- Adaptation The case of penguins
- Animal Ecology Competition, predation, and cooperation
- Craig Lee Ice patch archaeologist
- Diffusion I Random molecular movement and influences on diffusion rate
- From Stable Chromosomes to Jumping Genes The work of Barbara McClintock
- Inheritance Mendel's experiments and laws