When there are few copies of an allele, the effect of genetic drift is larger, and when there are many copies the effect is smaller. In the early 20th century, vigorous debates occurred over the relative importance of natural selection versus neutral processes, including genetic drift.
In computing and telecommunication, a control character or non-printing character is a code point (a number) in a character set, that does not represent a written symbol. C0 and C1 control codes-Wikipedia. STX-Start of Text-First character of message text, and may be used to terminate the message heading. SOH-Start of Header-First character of a message header. GS-Group Separator-Can be used as delimiters to mark fields of data structures.
The STM-1 (Synchronous Transport Module level-1) is the SDH ITU-T fiber optic network transmission standard.It has a bit rate of 155.52 Mbit/s. Higher levels go up by a factor of 4 at a time: the other currently supported levels are STM-4, STM-16, STM-64 and STM-256.he STM-1 frame is the basic transmission format for SDH (Synchronous Digital Hierarchy). A STM-1 frame has a byte-oriented structure with 9 rows and 270 columns of bytes, for a total of 2,430 bytes (9 rows * 270 columns = 2430 bytes).