Search results
Results from the WOW.Com Content Network
Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or ...
The word pedigree is a corruption of the Anglo-Norman French pé de grue or "crane's foot", either because the typical lines and split lines (each split leading to different offspring of the one parent line) resemble the thin leg and foot of a crane [3] or because such a mark was used to denote succession in pedigree charts.
Genetics is the study of genes and tries to explain what they are and how they work. Genes are how living organisms inherit features or traits from their ancestors; for example, children usually look like their parents because they have inherited their parents' genes.
The Roman poet and philosopher Lucretius describes heredity in his work "De rerum natura". [4] From this semen, Venus produces a varied variety of characteristics and reproduces ancestral traits of expression, voice or hair; These features, as well as our faces, bodies, and limbs, are also determined by the specific semen of our relatives. [5]
Mendelian inheritance (also known as Mendelism) is a type of biological inheritance following the principles originally proposed by Gregor Mendel in 1865 and 1866, re-discovered in 1900 by Hugo de Vries and Carl Correns, and later popularized by William Bateson. [1]
Three general types of extranuclear inheritance exist. Vegetative segregation results from random replication and partitioning of cytoplasmic organelles. It occurs with chloroplasts and mitochondria during mitotic cell divisions and results in daughter cells that contain a random sample of the parent cell's organelles.
His work elucidated the role played by the chromosome in heredity. Morgan voluntarily shared the prize money with his key collaborators, Calvin Bridges and Alfred Sturtevant. 1941: Edward Lawrie Tatum and George Wells Beadle show that genes code for proteins; [22] see the original central dogma of genetics.
Walter Sutton (left) and Theodor Boveri (right) independently developed different parts of the chromosome theory of inheritance in 1902.. The Boveri–Sutton chromosome theory (also known as the chromosome theory of inheritance or the Sutton–Boveri theory) is a fundamental unifying theory of genetics which identifies chromosomes as the carriers of genetic material.