product rule. The probability of two independent events occurring simultaneously is the product of the individual probabilities. The rule stating that the probability of the occurrence of independent events is the product of their separate probabilities.Click to see full answer. Hereof, what is the product rule in genetics?One probability rule that’s very useful in genetics is the product rule, which states that the probability of two (or more) independent events occurring together can be calculated by multiplying the individual probabilities of the events. what is the law of probability in biology? It states that the probability of the occurrence of one event or the other, of two mutually-exclusive events, is the sum of their individual probabilities. The sum rule can be applied to show the probability of having just one dominant trait in the F2 generation of a dihybrid cross. Considering this, what is the addition rule in biology? sum rule. The probability that one or the other of two mutually exclusive events will occur is the sum of their individual probabilities. The rule that states that the probability of the occurrence of mutually exclusive events is the sum of the probabilities of the individual events.What is product rule of probability?Probability – Rule of Product. The rule of product is a guideline as to when probabilities can be multiplied to produce another meaningful probability. Specifically, the rule of product is used to find the probability of an intersection of events: Let A and B be independent events.