Questions

Genetic drift or allelic drift is the change in the relative frequency in which a gene variant (allele) occurs in a population due to random sampling and chance.

When is genetic drift a major factor in evolution is

* When there is low gene flow.

* When there is no selective pressure.

* When there is a bottleneck.

An operating system has three main functions:

(1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers,

(2) establish a user interface, and

(3) execute and provide services for applications software.

W is the symbol for chemical element Tungsten or Wolfram.

It is used in making filaments of bulbs.

A view may be a subset of the database or it may contain virtual data that is derived from the database files but is not explicitly stored .

A river which can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps.