if both recessive genes are present , then the recessive trait will be visible / expressed
x_linked_recessive_inheritance is inheritance. dominant_gene is gene. attentiveness is trait. x_linked_gene is gene. x_linked_dominant_inheritance is inheritance. structural_gene is gene. recessive_gene is gene. immunoglobulin_isotype is structural_attribute_of_molecules. inheritance is heredity. trait is attribute.