believe it or not, there are people that believe that intelligence can be inherited, as to why they get bad grades they see this "inherited intelligence" as the answer, but is this really true? or is it just an excuse to not learn?. first, we need to know what intelligence is. intelligence is a concept created by man that is used to "measure" academic success, which is not the same as success in life. some consider that intelligence is what you learn in school, others that is what you learn outside and how you apply it to your life; and well it's actually a little bit of both. there are know multiple aspects of intelligence that are recognized, for example, emotional intelligence. it is also said that knowledge is useless if you don't know how to apply it. and this knowledge of application comes with experience. After we have seen how broad the concept of intelligence is, is it heritable? the answer is no. you can, under no circumstance, inherit experience, and as we saw, intelligence also requires experience.
I am a total believer that you do not inherit intelligence, you either work to acquire the knowledge and experience on how to apply it, or you decide not to, no genes involved.