Definition
noun, plural: macroevolutions
Evolution happening on a large scale, e.g. at or above the level of a species, over geologic time resulting in the divergence of taxonomic groups.
Supplement
Macroevolution involves variation of allele frequencies at or above the level of a species, where an allele is a specific iteration of a given gene. It is an area of study concerned with variation in frequencies of alleles that are shared between species and with speciation events, and also includes extinction. It is contrasted with microevolution, which is mainly concerned with the small-scale patterns of evolution within a species or population.
Word origin: Greek makro-, from makrós, long + evolution.
Related forms: macroevolutionary (adjective).
Compare: microevolution.
Dictionary > Macroevolution
You will also like...
Human Perception – Neurology
This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..
The Evolution of Cell Organelles
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..
The Homo Species
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..
Protein Variety
The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..
Chromosomes X and Y and Sex Determination
This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..
Control of Growth & Development
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..