1. The problem statement, all variables and given/known data The absence of legs in cattle (amputated) has been attributed to a completly recessive lethal gene. A normal bull is mated with a normal cow and they produce an amputad calf (usually dead at birth). The same parents are mated again. 1) What is the chance of the next calf being amputated? 2) What is the chance of these parents having two calves both of which are amputated? 3. The attempt at a solution 1) 1/4 2) The chance of getting two amputated calves is 2/8. So answer is 1/4. My teacher says its 1/16 but I don't get it.