The former head of "Yukos" Mikhail Khodorkovsky, serving his sentence in a colony in Krasnokamensk, didn’t take his exam on sewing learning on February 1, informed the official of the Russian Federation Penitentiary Service in Chita region. "He didn`t take the exam that day", said the official. He didn`t explain what caused postponing the exam. At the same time, noted the source, it is not excluded, that Khodorkovsky intended to obtain some other employment. According to him, Khodorkovsky has a right to engage himself in research work in his free time. However, concerning his teaching in colony school, there is no such possibility as this job is accomplished by civilian teachers.