Evolution, Heredity & Genetics, GAL-PLA

Earth has housed a vast variety of plants, animals, and other living things throughout the history of its existence, and many living things have changed in discernible ways over the years. The theory of evolution, one of the fundamental keystones of modern biological theory, examines the way in which such changes unfold. Heredity describes the biological processes by which certain characteristics are transmitted from parents to their offspring. Genetics studies heredity in general and genes in particular.
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Evolution, Heredity & Genetics Encyclopedia Articles By Title

Galton, Francis
Francis Galton was an English explorer, anthropologist, and eugenicist known for his pioneering studies of human......
Geddes, Sir Patrick
Sir Patrick Geddes was a Scottish biologist and sociologist who was one of the modern pioneers of the concept of......
Gegenbaur, Karl
Karl Gegenbaur was a German anatomist who demonstrated that the field of comparative anatomy offers important evidence......
gene
gene, unit of hereditary information that occupies a fixed position (locus) on a chromosome. Genes achieve their......
gene flow
gene flow, the introduction of genetic material (by interbreeding) from one population of a species to another,......
gene pool
gene pool, sum of a population’s genetic material at a given time. The term typically is used in reference to a......
gene-for-gene coevolution
gene-for-gene coevolution, a specific form of reciprocal evolutionary change based on the idea that, if one member......
genetic drift
genetic drift, a change in the gene pool of a small population that takes place strictly by chance. Genetic drift......
genetic epidemiology
genetic epidemiology, the study of how genes and environmental factors influence human traits and human health......
genetics
genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of......
genetics, human
human genetics, study of the inheritance of characteristics by children from parents. Inheritance in humans does......
genome-wide association study
genome-wide association study (GWAS), systematic approach to rapidly scanning the human genome for genetic variations,......
genomics
genomics, one of several omic branches of biological study, concentrates on the structure, function, and inheritance......
genotype
genotype, the genetic constitution of an organism. The genotype determines the hereditary potentials and limitations......
Geoffroy Saint-Hilaire, Étienne
Étienne Geoffroy Saint-Hilaire was a French naturalist who established the principle of “unity of composition,”......
germ-plasm theory
germ-plasm theory, concept of the physical basis of heredity expressed by the 19th-century biologist August Weismann......
Goldschmidt, Richard B.
Richard B. Goldschmidt was a German-born American zoologist and geneticist, formulator of the theory that chromosome......
Goldstein, Joseph L.
Joseph L. Goldstein is an American molecular geneticist who, along with Michael S. Brown, was awarded the 1985......
Gosse, Philip Henry
Philip Henry Gosse was an English naturalist who invented the institutional aquarium. In 1827 Gosse became a clerk......
Gould, Stephen Jay
Stephen Jay Gould was an American paleontologist, evolutionary biologist, and science writer. Gould graduated from......
Grene, Marjorie
Marjorie Grene was an American philosopher who is considered the founder of the philosophy of biology. Grene was......
group selection
group selection, in biology, a type of natural selection that acts collectively on all members of a given group.......
Haeckel, Ernst
Ernst Haeckel was a German zoologist and evolutionist who was a strong proponent of Darwinism and who proposed......
Haldane, J.B.S.
J.B.S. Haldane was a British geneticist, biometrician, physiologist, and popularizer of science who opened new......
Hall, Jeffrey C.
Jeffrey C. Hall is an American geneticist known for his investigations of courtship behaviour and biological rhythms......
Hamilton, William Donald
William Donald Hamilton was a British naturalist and population geneticist who found solutions to two of Darwin’s......
Hardy-Weinberg law
Hardy-Weinberg law, an algebraic equation that describes the genetic equilibrium within a population. It was discovered......
heritability
heritability, amount of phenotypic (observable) variation in a population that is attributable to individual genetic......
Hershey, A.D.
A.D. Hershey was an American biologist who, along with Max Delbrück and Salvador Luria, won the Nobel Prize for......
Hogben, Lancelot Thomas
Lancelot Thomas Hogben was an English zoologist, geneticist, medical statistician, and linguist, known especially......
Holliday junction
Holliday junction, cross-shaped structure that forms during the process of genetic recombination, when two double-stranded......
homology
homology, in biology, similarity of the structure, physiology, or development of different species of organisms......
homunculus
homunculus, diminutive fully formed human body, historically believed to inhabit a germ cell (an egg or a sperm)......
human genome
human genome, all of the approximately three billion base pairs of deoxyribonucleic acid (DNA) that make up the......
Human Genome Project
Human Genome Project (HGP), an international collaboration that successfully determined, stored, and rendered publicly......
Huxley, Sir Julian
Sir Julian Huxley was an English biologist, philosopher, educator, and author who greatly influenced the modern......
Huxley, Thomas Henry
Thomas Henry Huxley was an English biologist, educator, and advocate of agnosticism (he coined the word). Huxley’s......
Hwang Woo-Suk
Hwang Woo-Suk is a South Korean scientist whose revolutionary claims of having cloned human embryos from which......
inbreeding
inbreeding, the mating of individuals or organisms that are closely related through common ancestry, as opposed......
industrial melanism
industrial melanism, the darkness—of the skin, feathers, or fur—acquired by a population of animals living in an......
International HapMap Project
International HapMap Project, an international collaboration aimed at the identification of genetic variations......
Island of Doctor Moreau, The
The Island of Doctor Moreau, science fiction novel by H.G. Wells, published in 1896. The classic work focuses on......
Johannsen, Wilhelm Ludvig
Wilhelm Ludvig Johannsen was a Danish botanist and geneticist whose experiments in plant heredity offered strong......
Jones, Donald Forsha
Donald Forsha Jones was an American geneticist and agronomist who made hybrid corn (maize) commercially feasible.......
Keith, Sir Arthur
Sir Arthur Keith was a Scottish anatomist and physical anthropologist who specialized in the study of fossil humans......
Kerr, Sir John Graham
Sir John Graham Kerr was an English embryologist and pioneer in naval camouflage who greatly advanced knowledge......
K–T extinction
K–T extinction, a global mass extinction event responsible for eliminating approximately 80 percent of all species......
Lamarck, Jean-Baptiste
Jean-Baptiste Lamarck was a pioneering French biologist who is best known for his idea that acquired characters......
Lamarckism
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such......
Lankester, Sir Edwin Ray
Sir Edwin Ray Lankester was a British authority on general zoology at the turn of the 19th century, who made important......
Lederberg, Joshua
Joshua Lederberg was an American geneticist and a pioneer in the field of bacterial genetics. He shared the 1958......
Lewis, Edward B.
Edward B. Lewis was an American developmental geneticist who, along with geneticists Christiane Nüsslein-Volhard......
list of geneticists
This is a list of prominent geneticists, organized alphabetically by country of birth or residence. Geneticists......
Lorenz, Konrad
Konrad Lorenz was an Austrian zoologist and the founder of modern ethology, the study of animal behaviour by means......
Lyell, Charles
Charles Lyell was a Scottish geologist largely responsible for the general acceptance of the view that all features......
Lysenko, Trofim
Trofim Lysenko was a Soviet biologist and agronomist, the controversial “dictator” of Communistic biology during......
Margulis, Lynn
Lynn Margulis was an American biologist whose serial endosymbiotic theory of eukaryotic cell development revolutionized......
mass extinction event
mass extinction event, any circumstance that results in the loss of a significant portion of Earth’s living species......
Matthew, Patrick
Patrick Matthew was a Scottish landowner and agriculturalist best known for his development of an early description......
Matthew, William Diller
William Diller Matthew was a Canadian-American paleontologist who was an important contributor to modern knowledge......
Mayr, Ernst
Ernst Mayr was a German-born American biologist known for his work in avian taxonomy, population genetics, and......
McClintock, Barbara
Barbara McClintock was an American scientist whose discovery in the 1940s and ’50s of mobile genetic elements,......
McClung, Clarence E
Clarence E. McClung was an American zoologist whose study of the mechanisms of heredity led to his 1901 hypothesis......
McLaren, Dame Anne
Dame Anne McLaren was an English geneticist who pioneered fundamental advances in mammalian genetics and embryology......
meiosis
meiosis, division of a germ cell involving two fissions of the nucleus and giving rise to four gametes, or sex......
Mello, Craig C.
Craig C. Mello is an American scientist, who was a corecipient, with Andrew Z. Fire, of the Nobel Prize for Physiology......
Mendel, Gregor
Gregor Mendel was a botanist, teacher, and Augustinian prelate, the first person to lay the mathematical foundation......
Mendelian inheritance
Mendelian inheritance, the principles of heredity formulated by Austrian-born botanist, teacher, and Augustinian......
messenger RNA
messenger RNA (mRNA), molecule in cells that carries codes from the DNA in the nucleus to the sites of protein......
metaphase
metaphase, in mitosis and meiosis, the stage of cell division characterized by the alignment of the chromosomes......
microRNA
microRNA (miRNA), small molecule in cells, typically about 21–25 nucleotides in length, that plays a crucial role......
missing link
missing link, hypothetical extinct creature halfway in the evolutionary line between modern human beings and their......
mitosis
mitosis, a process of cell duplication, or reproduction, during which one cell gives rise to two genetically identical......
Monboddo, James Burnett, Lord
James Burnett, Lord Monboddo was a Scottish jurist and pioneer anthropologist who explored the origins of language......
Moon Shin Yong
Moon Shin Yong is a South Korean obstetrician who was involved in human-cloning research that was later discovered......
Morgan, Thomas Hunt
Thomas Hunt Morgan was an American zoologist and geneticist, famous for his experimental research with the fruit......
mosaic evolution
mosaic evolution, the occurrence, within a given population of organisms, of different rates of evolutionary change......
Muller, Hermann Joseph
Hermann Joseph Muller was an American geneticist best remembered for his demonstration that mutations and hereditary......
Mullis, Kary
Kary Mullis was an American biochemist, cowinner of the 1993 Nobel Prize for Chemistry for his invention of the......
mutation
mutation, an alteration in the genetic material (the genome) of a cell of a living organism or of a virus that......
mutation theory
mutation theory, idea that new species are formed from the sudden and unexpected emergence of alterations in their......
natural selection
natural selection, process that results in the adaptation of an organism to its environment by means of selectively......
neo-Darwinism
neo-Darwinism, Theory of evolution that represents a synthesis of Charles Darwin’s theory in terms of natural selection......
Nüsslein-Volhard, Christiane
Christiane Nüsslein-Volhard is a German developmental geneticist who was jointly awarded the 1995 Nobel Prize for......
Oka Asajirō
Oka Asajirō was a biologist who introduced the theory of evolution to the Japanese public and whose researches......
Omalius d’Halloy, Jean-Baptiste-Julien d’
Jean-Baptiste-Julien d’ Omalius d’Halloy was a Belgian geologist who was an early proponent of evolution. D’Omalius......
one gene–one enzyme hypothesis
one gene–one enzyme hypothesis, idea advanced in the early 1940s that each gene controls the synthesis or activity......
Onslow, Muriel Wheldale
Muriel Wheldale Onslow was a British biochemist whose study of the inheritance of flower colour in the common snapdragon......
Ordovician radiation
Ordovician radiation, an interval of intense diversification of marine animal life that unfolded over tens of millions......
Ordovician-Silurian extinction
Ordovician-Silurian extinction, global mass extinction event occurring during the Hirnantian Age (445.2 million......
orthogenesis
orthogenesis, theory that successive members of an evolutionary series become increasingly modified in a single......
paedomorphosis
paedomorphosis, retention by an organism of juvenile or even larval traits into later life. There are two aspects......
parallel evolution
parallel evolution, the evolution of geographically separated groups in such a way that they show morphological......
Pearson, Karl
Karl Pearson was a British statistician, leading founder of the modern field of statistics, prominent proponent......
pedigree
pedigree, a record of ancestry or purity of breed. Studbooks (listings of pedigrees for horses, dogs, etc.) and......
Permian extinction
Permian extinction, a series of extinction pulses that contributed to the greatest mass extinction in Earth’s history.......
phenotype
phenotype, all the observable characteristics of an organism that result from the interaction of its genotype (total......
plasmid
plasmid, in microbiology, an extrachromosomal genetic element that occurs in many bacterial strains. Plasmids are......

Evolution, Heredity & Genetics Encyclopedia Articles By Title