The law of splitting implies a divergence of traits in the offspring. The law of independent inheritance is associated with the independence of the inheritance of characters when crossing individuals that differ in two or more characteristics. Genes located on the same chromosome are inherited linked. But when two clean lines are crossed, the law of dominance appears, that is, the offspring are uniform.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.