Answer:
Changes (mutations) to genes can result in changes to proteins, which can affect the structures and functions of the organism and thereby change traits. sexual reproduction, genetic information can be altered because of mutations. Though rare, mutations may result in changes to the structure and function of proteins.
A weight-training program that gradually increases the resistance lifted relies on the progression principle to build strength, where strength is the amount of force a muscle can exert.
The principle of progression states that you should overload gradually and that <span>there is a perfect level of overload in-between a too slow increase and a too rapid increase.</span>