Which of he following menu types is also called a drop-down menu?
Pull-Down menu types is also called a drop-down menu.
Pull-down menu. (n.) Also called a drop-down menu, a menu of commands or options that appears when you select an item with a mouse. The item you select is generally at the top of the display screen, and the menu appears just below it, as if you had pulled it down.
A drop-down list (abbreviated drop-down; also known as a drop-down menu, drop menu, pull-down list, picklist) is a graphical control element, similar to a list box, that allows the user to choose one value from a list. When a drop-down list is inactive, it displays a single value.
The technique relies on antigen/antibody recognition (immuno) and the subsequent mass- or affinity-related isolation of the capture/target complex (precipitation). It is the precipitation of the target protein that is referenced by the name: Pull-down assay.