Transmission having a first input shaft and having a second input shaft, having an output shaft, having a first clutch and having a second clutch, it being possible for each of the input shafts (102, 103) to be connected by way of one of the clutches (104, 105) to the crankshaft of a drive engine, it being possible for each of the input shafts (102, 103) to be connected in a torque-transmitting manner by means of gearwheel pairs (113/121, 110/118, 114/122, 111/119, 115/123, 112/120, 116/124, 109/117) to the output shaft, it being possible for groups of two gearwheel pairs (113/121 and 114/122, and 115/123 and 116/124, and 111/119 and 112/120) to be connected in a torque-transmitting manner in each case by means of an actuable selector fork (130, 131, 132, 133) to the output shaft, each gearwheel pair (113/121, 110/118, 114/122, 111/119, 115/123, 112/120, 116/124, 109/117) being assigned a transmission stage (ÜR, Ü1 to Ü7), a number of transmission stages which are stepped relative to one another being provided, the two transmission stages of one group of gearwheel pairs being a first transmission stage and the next but one transmission stage (N+2), where N is an integer, in particular N = 1, 2, 3, 4 or 5, etc., the transmission stages (Ü1, Ü3, Ü5, Ü7) of an input shaft having two groups of gearwheel pairs (113/121 and 114/122, and 115/123 and 116/124), said gearwheel pairs (113/121, 114/122, 115/123, 116/124) comprising the transmission stages 1, 3, 5 and 7, the transmission stages (Ü1, Ü3, Ü5, Ü7) of an input shaft having two groups of gearwheel pairs (113/121 and 114/122, and 115/123 and 116/124), said gearwheel pairs (113/121, 114/122, 115/123, 116/124) comprising the transmission stages 1 and 3 in one group and 5 and 7 in another group, the transmission stages (ÜR, Ü2, Ü4, Ü6) of an input shaft having two groups of gearwheel pairs (111/119 and 112/120, and 109/117 and 110/118), said gearwheel pairs (111/119, 112/120, 109/117, 110/118) comprising the transmission stages 2, 4 and 6, the transmission stage (ÜR) of the reverse gear R being assigned to one of the gearwheel pairs (109/117 and 110/118), and the transmission stages (ÜR, U2, U4, U6) of an input shaft having two groups of gearwheel pairs (111/119 and 112/120, and 109/117 and 110/118), said gearwheel pairs (111/119, 112/120, 109/117, 110/118) comprising the transmission stages R and 2 in one group and 4 and 6 in another group, characterized in that the two groups of gearwheel pairs (113/121 and 114/122, and 115/123 and 116/124) follow one another on the input shaft in such a way that the transmission stages 3 and 5 are adjacent, and the two groups of gearwheel pairs (111/119 and 112/120, and 109/117 and 110/118) follow one another on the input shaft in such a way that the transmission stages 2 and 4 are adjacent, the gearwheel pairs (113/121, 110/118, 114/122, 111/119, 115/123, 112/120, 116/124, 109/117) of at least one of the input shafts (102, 103) or of all the input shafts (102, 103) being actuated in pairs by means of a selector fork (130, 131, 132, 133), the selector forks (130, 131, 132, 133) of an input shaft (102, 103) being actuated in each case by way of a shifting drum (134, 135, 136, 137).