Search Results for: ultraviolet_b
Photolysis
Photolysis Definition We define photolysis as a chemical process in which chemical compounds or molecules are split into... Read More
Electromagnetic spectrum
Definition noun The spectrum of all types of electromagnetic radiation Supplement The electromagnetic spectrum includes... Read More
Great Oxygenation Event
Great Oxygenation Event Definition The Great Oxygenation Event is defined as the surge of dioxygen (O2) levels in the... Read More
Environment
Environment Definition What does environment mean? If you mean physical environment, then it is defined as the surrounding... Read More
Lysogenic conversion
Lysogenic conversion --> lysogeny (Science: virology) The ability of some phages to survive in a bacterium as a result of... Read More
Polyploidy
Reviewed by: Mary Anne Clark, Ph.D. Polyploidy Polyploidy is defined as the state of being polyploid, which... Read More
Genetic Control – On and Off Genes
Reviewed by: Mary Anne Clark, Ph.D. This lesson looks at the various factors involved that affect growth and... Read More
Melanocyte-stimulating hormone
Definition noun, plural: melanocyte-stimulating hormones A peptide hormone in vertebrates that primarily regulate melanin... Read More
Erwin Chargaff
Quick Info (person) A biochemist known for his proposed Chargaff's rules that led to the discovery of the double helical... Read More
Biotic factor
Biotic Factor Definition A biotic factor is the living component in an ecosystem. The term "biotic" means "of or related... Read More
Invisible spectrum
Invisible spectrum The radiation lying on either side of visible light, i.e., infrared and ultraviolet... Read More
Provitamin d3
provitamin D3 --> 7-dehydrocholesterol Cholesta-5,7-dien-3b-ol;a zoosterol in skin and other animal tissues that upon... Read More
Filtration
Filtration Definition What is filtration? Filtration is separating a solid from a fluid through a porous material that... Read More
Integumentary system
Integumentary System Definition The integumentary system is the outermost layer of the body. The animal body, in... Read More
Electromagnetic radiation
Definition noun The radiation that consists of associated, interacting electric and magnetic field waves traveling at the... Read More
Wavelength
wavelength (Science: radiobiology) The length of a single cycle of a wave, usually measured from crest-to-crest. For... Read More
Cross-linking
Cross-linking Definition Cross-linking, in general, means the forming of cross-links between the joining structures. In... Read More