| Haldane's evolutionary unit | <unit> A unit of measurement, given in darwins, which measures the increase in body size of a chronospecies over evolutionary time. (13 Nov 1997) |
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| evolutionary computation | <genetics> Evolutionary computation, genetic algorithms, and genetic programming are all computer disciplines involved with modeling genetic inheritance and/or biological evolution in computers. (09 Oct 1997) |
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| evolutionary distance | <botany> In phylogenetic trees, the sum of the physical distance on a tree separating organisms, this distance is inversely proportional to evolutionary relatedness. (09 Oct 1997) |
| evolutionary fitness | The probability that the line of descent from an individual with a specific trait will not eventually die out. (05 Mar 2000) |
| Haldane chamber | An obsolete chamber for metabolic studies on animals. (05 Mar 2000) |
| Haldane effect | The promotion of carbon dioxide dissociation by oxygenation of haemoglobin. (05 Mar 2000) |
| Haldane, John B S | <person> English biochemist and geneticist, who wrote many works of popular science. Lived: 1892-1964. See: Haldane relationship. (05 Mar 2000) |
| Haldane, John S | <person> Scottish physiologist at Oxford. Lived: 1860-1936. See: Haldane's apparatus, Haldane chamber, Haldane effect, Haldane transformation, Haldane tube, Haldane-Priestley sample. (05 Mar 2000) |
| Haldane-Priestley sample | <physiology> An approximation of alveolar gas obtained from the end of a sudden maximal expiration into a Haldane tube. (05 Mar 2000) |
| Haldane relationship | <biochemistry> A mathematical relationship between the equilibrium constant of an enzyme-catalyzed reaction and all of that enzyme's kinetic parameters (e.g., Vmax and Km's). (05 Mar 2000) |
| Haldane's apparatus | <apparatus, chest medicine> A device used for the analysis of respiratory gases. (05 Mar 2000) |
| Haldane's rule | <genetics> if one of the two sexes is missing, sterile, or rare in a population of first-generation hybrids between two different species, then that sex is the heterogametic sex (has two different sex chromosomes, such as XY as opposed to XX). (09 Oct 1997) |
| Haldane transformation | The multiplication of inspired oxygen concentration by the ratio of expired to inspired nitrogen concentrations in the calculation of oxygen consumption or respiratory quotient by the open circuit method. (05 Mar 2000) |
| Haldane tube | A tube for securing human alveolar air samples; consisting of a narrow hosepipe with a mouthpiece from which a tube is attached for the withdrawal of expired air at the end of a sudden, maximal expiration. (05 Mar 2000) |
| absolute unit | A unit whose value is constant regardless of place or time and not derived from dependent on gravitation. (05 Mar 2000) |
| alexin unit | The smallest amount (highest dilution) of complement that will cause haemolysis of a unit of red blood cells in the presence of a haemolysin unit. Synonym: alexin unit. (05 Mar 2000) |