position effect


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position effect

[pə′zish·ən i‚fekt]
(genetics)
Change in expressivity of a gene associated with changes in location on a chromosome, as from euchromatin to heterochromatin.
Inherent gene expression as influenced by neighboring genes.
References in periodicals archive ?
LLTM can also be used to model construct irrelevant factors such as item format effects and item position effects (Kubinger, 2009).
This method has been previously shown to be effective for resolving the position effect for EMG control [16]; it increases the repeatability between the training and testing data sets [28].
For his part, Webb and Ray (1979) have showed that there is a serial position effect in four- ad blocks.
The NAR-Mediated Reduction in Position Effect can be uncoupled from Copy Number-Dependent Expression in Transgenic Plants.
For example, Rebele, Stout, & Hassell (1991) reviewed several articles on course delivery and teaching methods and suggested that evidence regarding the impact of alternative teaching methods is, for the most part, The current study investigates whether or not the serial position effect can be observed in a real-world classroom setting where students have to learn, comprehend, and recall a large amount of related information over an extended time frame.
Locus control region function and heterochromatin-induced position effect variegation.
Because of the significant plot position effect and lack of interaction between plot position and treatment ([F.
R] faster than do introverts, extraverts should show a more steeply peaked serial position effect in serial rote learning.
Exploit the serial position effect and the laws of primacy and recency by putting your most meaningful list items in the first and last list positions.
In the meantime, advertising practitioners who suspect a position effect don't know which positions are more desirable (Brown, 1988).