Figure 1: Diagram of pleiotropy. A pleiotropic gene is a single gene that controls more than one trait. Â© 2008 Nature Education All rights reserved. Today, we know that Mendel's observations were the result of pleiotropy, or the phenomenon in which a single gene contributes to multiple phenotypic traits.he term pleiotropy is derived from the Greek words pleio, which means many, and tropic, which means affecting.. Genes that affect multiple, apparently unrelated, phenotypes are thus called pleiotropic genes (Figure 1).
One stop is a factor of 2 (2x or 1/2). One EV is a step of one stops compensation value (could be aperture, shutter speed, or ISO, or some combination). This +1 EV means a one stop greater exposure. I assume this basic compensation use is already known. The rest of the page is about the absolute EV numbers.
IDE (Integrated Drive Electronics) is a standard electronic interface used between a computer motherboard's data paths or bus and the computer's disk drive storage devices. IDE (Integrated Drive Electronics) is a standard electronic interface used between a computer motherboard's data paths or bus and the computer's disk drive storage devices.