What types of root systems are typical for adult beans and wheat plants?

The root system is all the roots of the plant, it consists of the main root (develops from the root of the embryo of the seed), lateral roots (extending from the main root) and adventitious or additional roots. Distinguish between a tap root system, where the main root is well developed (a sign of dicotyledonous plants) and a fibrous one, where all roots are the same (a sign of monocotyledonous plants).
Wheat is a monocotyledonous plant, which means the root system is fibrous, beans are a dicotyledonous plant, which means the root system is pivotal.