The invention provides isolated nucleic acid molecules which encode novel fatty acid desaturase family members. In order to clone the virtual machine, the virtual machine state of the source virtual machine is copied to formulate a target virtual machine state that is to be associated with a target virtual machine. A flexible connector electrically couples the first circuit board to the second circuit board, such that the memory chip is electrically connected to the array of electrical contact points. A first inner lip 32a at the nearest position to the terminal 5 is formed to have a lower projecting height then that of the second inner lip 32b and the third inner lip 32c. In this clock control type processor, a block difference detection circuit 20 detects a difference between a processing block address and a writing block address and outputs a block difference signal 105, and a clock control circuit 16 controls a clock.