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Quantitative in Biological Definition

Genetics

... 2.2 Molecular genetics 2.3 Population, quantitative and ecological genetics 2.4 Genomics 2.5 ... the RNA world hypothesis . Population, quantitative and ecological genetics Main articles: Population genetics , quantitative genetics , Ecological genetics ...

Species

... requirements must be met: It is possible to reliably measure a quantitative difference between the two groups that does not overlap . A population ... a population may 'break the rule' without invalidating it. The less a quantitative difference varies within a population and the more it varies between ...

Activation energy

... and the molecules get close enough for attractions between the molecules to cause a rearrangement of bonds. The Arrhenius equation gives the quantitative basis of the relationship between the activation energy and the rate at which a reaction proceeds. The study of reaction rates is termed chemical ...

Axon

... in the late 1930's by K. Cole and H. Curtis. Alan Hodgkin and Andrew Huxley also employed the squid axon (1939) and by 1952 they had obtained a full quantitative description of the ionic basis of the action potential. Hodgkin and Huxley were awarded jointly the Nobel Prize for this work in 1963. See also ...

Enzyme

... of the enzyme and substrate are responsible for this specificity (Fig. 2). Kinetics In 1913, Leonor Michaelis and Maud Menten proposed a quantitative theory of enzyme kinetics which is still widely used today (usually referred to as Michaelis-Menten kinetics ). Enzymes can perform up to several ...

Genomics

... 'all', 'every' or 'complete') was " genome ", which refers to the complete genetic makeup of an organism. Because of the success of large-scale quantitative biology projects such as genome sequencing, the suffix "ome" has been extended to a host of other contexts. The only other "ome" to shake its origin ...

Morphometrics

... and what kinds of questions they ask of the measurements once they are made. In many cases involves calculating angles, areas, volumes and other quantitative data from landmark and segmentation data. ...

Population genetics

... , its primary founders were Sewall Wright , J. B. S. Haldane and Ronald Fisher , who also laid the foundations for the related discipline of quantitative genetics . Contents showTocToggle("show","hide") 1 Scope and theoretical considerations 2 Population geneticists 3 See also ...

Rudolf Steiner

... mind. - Richard Tarnas, p.433-434, 1991. On the basis of this epistemology, Steiner attempted to develop a qualitative science to complement the quantitative science of Newton, Galileo and Einstein. Steiner claimed that if one practiced various systematic forms of inner discipline, it would be possible to ...

Sewall Wright

... in animal and plant breeding, and his work on population genetics theory greatly influenced Jay Lush , who did the pioneering work on use of quantitative genetics in animal and plant breeding. He was born in Galesburg, Illinois . He took a doctorate under William E. Castle at Harvard, graduating ...

Sociobiology

... explained by these means, and it was correlated to the degree of genome shared by the altruists, as predicted. Another successful example was a quantitative description of infanticide by male harem-mating animals when the alpha male is displaced. Female infanticide and fetal resorption are active ...

Trait

... locus or map location. A chromosomal region known to control a trait while the responsible gene within not being identified is referred to as a quantitative trait locus . The nucleus of a diploid cell contains two of each chromosome, with homologous (mostly identical) pairs of chromosomes having the ...

X-ray crystallography

... incoming X-ray photons to diffract them, not the atomic nuclei . The material and molecular structure of a substance can often be inferred by quantitative study of this pattern. It is widely used in chemistry and biochemistry to determine the structures of an immense variety of molecules, including ...
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