Pleiotropy. Pleiotropy is the phenomenon whereby a single gene has multiple consequences in numerous tissues. Pleiotropic effects stem from both normal and mutated genes, but those caused by mutations are often more noticeable and easier to study.leiotropy. Pleiotropy is the phenomenon whereby a single gene has multiple consequences in numerous tissues. Pleiotropic effects stem from both normal and mutated genes, but those caused by mutations are often more noticeable and easier to study.
An evaluation instrument is typically a questionnaire, an interview script, or a set of observation guidelines, used to evaluate one or more aspects of an intervention in the drugs field.nstruments are generally classed according to the intervention field they are designed to be used in (treatment, prevention, or harm reduction), though some instruments may be usable in more than one field.
Implementation of a sound evaluation system is critical to producing equitable outcomes where student success is no longer predictable based on race, socio-economics, language, and family background. The toolkit is designed to support districts as they move forward with implementation.