According to the principle of dominance, a. the genotype for a trait will always mask the phenotype b. dominant genes will always be masked by recessive genes c. recessive genes will always be masked by dominant genes

When the ball is rising up, it gains kinetic energy. when the ball reaches the very top, it will have all potential energy, until it falls back down and gains it kinetic energy. finally when you catch the ball or it falls back down, it would have gained its potential energy back.