Select all that apply. Which of the following statements are true? A purebred organism can either be TT or tt. The combination of two genes determines the genetic trait of an organism. Recessive genes

Select all that apply. Which of the following statements are true? A purebred organism can either be TT or tt. The combination of two genes determines the genetic trait of an organism. Recessive genes will sometimes be masked by dominant genes. It is possible for two genetically different plants to have the same phenotype.