Many mutations have no effect at all. These are called silent mutations. But the mutations we hear about most often are the ones that cause disease. Some well-known inherited genetic disorders include cystic fibrosis, sickle cell anemia, Tay-Sachs disease, phenylketonuria and color-blindness, among many others. All of these disorders are caused by the mutation of a single gene. Most inherited genetic diseases are recessive, which means that a person must inherit two copies of the mutated gene to inherit a disorder.
A modem (mo dulator-dem odulator) is a device that modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data.
The word modem is short for modulator-demodulator which is essentially what it does. A computer moves data around on parallel wires by applying one or another voltage to each wire (representing 0's and 1's) and the voltage is read at the other end of the wires.This is digital communication.odem is short for Modulator/Demodulator. A modem receives analog signals from the cable provider (in this case a cable modem) and modulates the carrier signal to encode it into a digital signal readable by your router or NIC.