Icosahedron is a solid formed of 20 triangular faces and 12 corners; the geometrical shape of many virions.
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Complement is a normal thermolabile protein constituent of blood serum that participates in antigen-antibody reactions.
- Gram stain
Gram stain is a differential stain by which bacteria are classed as Gram-positive or Gram-negative depending upon whether they retain or lode
Immunization means any process that develops resistance (immunity) to a specific disease in a host.
Oospores are spores formed after the fertilization of the eggs within the oogonium.
Spectrophotometer is an instrument that measures the transmission of light, permitting the accurate analysis of color or the accurate comparison
Pyrenoids is in chloroplasts, dense region on which surface starch granules form.
Aplanospore is nonmotile spore; an abortive zoospore.