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A monkey is in a room. Suspended from the ceiling is a bunch of bananas, beyond the monkey's reach. However, in the room there are also a chair and a stick. The ceiling is just the right height so that a monkey standing on a chair could knock the bananas down with the stick. The monkey knows how to move around, carry other things around, reach ...
The Brown–Peterson task refers to two studies published in the late 1950s that used similar procedures, one in 1958 by John Brown [1] and a second in 1959 by Lloyd and Margaret Peterson. [2] The first experiment involved 24 psychology students at Indiana University at the time. The examiner proceeded by spelling a random three-letter nonsense ...
Fruits are often sold as mandarin, tangerine, or satsuma (which may be synonyms). Fruit sold under these names include many that are, like Sunbursts and Murcotts , hybrids with grapefruit ancestry. [35] [39] [40] The diversity of fruits called limes is remarkable; some, like the Spanish lime and Wild lime , are not even citrus fruit.
The one gene–one enzyme hypothesis is the idea that genes act through the production of enzymes, with each gene responsible for producing a single enzyme that in turn affects a single step in a metabolic pathway. The concept was proposed by George Beadle and Edward Tatum in an influential 1941 paper [1] on genetic mutations in the mold ...
Blocking (statistics) In the statistical theory of the design of experiments, blocking is the arranging of experimental units that are similar to one another in groups (blocks) based on one or more variables. These variables are chosen carefully to minimize the impact of their variability on the observed outcomes.
Plackett–Burman designs are experimental designs presented in 1946 by Robin L. Plackett and J. P. Burman while working in the British Ministry of Supply. Their goal was to find experimental designs for investigating the dependence of some measured quantity on a number of independent variables (factors), each taking L levels, in such a way as to minimize the variance of the estimates of these ...
Drosophila embryogenesis, the process by which Drosophila (fruit fly) embryos form, is a favorite model system for genetics and developmental biology. The study of its embryogenesis unlocked the century-long puzzle of how development was controlled, creating the field of evolutionary developmental biology. [1]
Response surface methodology. In statistics, response surface methodology ( RSM) explores the relationships between several explanatory variables and one or more response variables. RSM is an empirical model which employs the use of mathematical and statistical techniques to relate input variables, otherwise known as factors, to the response.