Answer: Dominance of Gene for Bright Yellow Coloration.
Explanation: Gene carries the genetic makeup of a particular organism. It house all the information of all living organisms.
According to the phenomenon expressed by Gregor Mendel (law of Inheritance), genes are divided into two; dominant and recessive. The gene responsible for bright yellow color is more dominant in ascending generation of the frog which translates that gene responsible for green color is recessive.