Get the allele definition and examples in genetics. Learn about the difference between alleles and genes and their location on chromosomes.
Monthly Archives: November 2023
Learn about blood types, including A, B, AB, O and Rh+ and Rh-. See which blood type is the universal donor and universal recipient.
Blood Types – A, B, AB, O, Rh
Learn how to add fractions. Get step-by-step instructions and examples using simple and mixed fractions and one with negative numbers.
How to Add Fractions
Get facts about the element selenium, with symbol Se and atomic number 34. Learn about its properties, uses, health effects, and sources.
Selenium Facts – Element Se or 34
Learn about mammals. Discover their characteristics, get examples, and learn about different orders of mammals.
Mammals – Definition, Examples, Characteristics
Get the micelle definition and learn about micellar structure, function, and uses in chemistry, biology, and everyday life.
Micelle Definition, Structure, and Function
Learn what an atom is in science. Get the atom definition, examples, and learn about atomic structure, size, and shape.
What Is an Atom? Atom Definition
Discover osmium facts. Learn about its discovery, hardness, density, uses, sources, and toxicity. See a photo of Os or atomic number 76.
Osmium Facts – Element 76 Symbol Os
Learn about the nucleosome in biology. Discover its structure and functions relating to DNA packaging and transcription and gene regulation.