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Genetics

From Encyclopedia of Global Health
Genetics is the branch of biology that studies heredity. The passing of biological information from parents to offspring occurs through the combination of genes that are unique to each individual person, animal or plant that reproduces through living cells. As a field of study, it is concerned with the origin of individual characteristics and the way that these are transmitted to offspring. Genetics has developed over the centuries from the view of Aristotle and others that the species are fixed. One ancient idea being that inside of the seed of a man was another tiny little man. Inside of his seed was another tiny little man and so on through the generations. Charles Darwin’s ideas on evolution sparked controversy in part over how it was possible for species to develop into different animals from “lesser” species. The prevailing view in his time was that of Jean-Baptiste Lamarck (1744–1829) who had viewed heredity as proceeding according to natural laws, in particular through…
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Full text Article genetics

From Cambridge Dictionary of Sociology
A branch of biology, genetics is concerned with the study of heredity and the variability of organisms. The twentieth century has been described by Evelyn Fox Keller as The Century of the Gene (2000). From the discovery at the turn of the twentieth century that Gregor Mendel's laws of inheritance…
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Full text Article GENETICS

From Encyclopedia of Nursing Research
Keywords: genetics, genomics, human genome, nursing research, Genetics, Genome, Human, Genomics, Nursing Research The genomic era of health care began in April 2003 with the completion of the sequencing of the human genome. The human genome uses four proteins—adenosine, cytosine, guanine, and…
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Full text Article genetics

From Britannica Concise Encyclopedia
Study of heredity in general and of gene s in particular. Modern genetics began in the 19th century with the work of Gregor Mendel , who formulated the basic concepts of heredity. In 1909 the word gene was coined by Wilhelm Johannsen , thus giving genetics its name. In the same year, Thomas Hunt…
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Full text Article Genetics

From SAGE Key Concepts series: Key Concepts in Body and Society
Definition Genetics is the study of the chromosomes and the DNA of living organisms. Human beings have 23 pairs of chromosomes and half of each pair is contributed by each of our parents. Each half of the pairs is contained in the respective reproductive gametes (egg, sperm), one pairing of which…
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Full text Article genetics

From The Hutchinson Unabridged Encyclopedia with Atlas and Weather Guide
Branch of biology concerned with the study of heredity and variation in organisms. It aims to explain how characteristics of living organisms are passed on from one generation to the next. The science of genetics is based on the work of Austrian biologist Gregor Mendel , whose experiments with the…
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Full text Article Human Genetics

From Brenner's Encyclopedia of Genetics
Human Genetics
Human genetics is the study of genetic and biological variation in Homo sapiens . Its various branches are population genetics, cytogenetics, biochemical genetics, epigenetics, and genome studies including biodiversity and human evolution. Clinical/medical genetics is the study of genetic variation…
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Full text Article Genetics

From Encyclopedia of Autism Spectrum Disorders
Genetics is a branch of biological science that focuses on the study of how the biological instructions for the development and functioning of living organisms are passed from generation to generation and how changes in these instructions lead to variation in the traits of organisms. In addition, …
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Full text Article Genetics

From 50 Maths Ideas You Really Need to Know
Population representing the proportions 1:1:3 of...
Genetics is a branch of biology, so why is it in a mathematics book? The answer is that these two subjects cross-fertilize and enrich each other. The problems of genetics require mathematics but genetics has also suggested new branches of algebra. Gregor Mendel is central to the whole theme of…
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Full text Article Clinical Genetics

From Brenner's Encyclopedia of Genetics
Abstract Clinical genetics currently focuses on the diagnosis, management, and genetic risk assessment and genetic counseling of patients with inherited disorders and their families. Two unique aspects of medical genetics among medical specialties are as follows: (1) the combination of a strictly…
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Full text Article genetics

From The Columbia Encyclopedia
scientific study of the mechanism of heredity. While Gregor Mendel first presented his findings on the statistical laws governing the transmission of certain traits from generation to generation in 1856, it was not until the discovery and detailed study of the chromosome and the gene in the 20th…
| 1,396 words
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