counterselection

counterselection
\\“+\ noun
Etymology: counter- + selection
: selection opposed in its effects to natural selection: as
a. : preservation of the unfit : dysgenic selection (as forced on man by social customs)
b. : selection in plant or animal breeding against a quality undesirable from the point of view of the breeder though likely to be retained in a state of nature

counterselection against low milk production in cattle


Useful english dictionary. 2012.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • counterselection — coun·ter·selection …   English syllables

  • Recombineering — (recombinogenic engineering) is a genetic and molecular biology technique based on homologous recombination systems in E. coli to modify DNA. The procedure is widely used in the generation of target vectors for making conditional mouse knockout.… …   Wikipedia

  • Sexual selection — This article is about the evolutionary concept. For the selection of the sex of offspring, see sex selection. Goldie s Bird of paradise: Ornamented male above; female below. Paradesia decora by John Gerrard Keulemans (d.1912) Sexual selection, a… …   Wikipedia

  • natural selection — noun a) A process by which heritable traits conferring survival and reproductive advantage to individuals, or related individuals, tend to be passed on to succeeding generations and become more frequent in a population, whereas other less… …   Wiktionary

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