if both recessive genes are present , then the recessive trait will be visible / expressed
immunoglobulin_isotype is not structural_attribute_of_molecules. recessive_gene is gene. inheritance is not heredity. structural_gene is gene. x_linked_gene is gene. inheritance is heredity. x_linked_recessive_inheritance is not inheritance. recessive_gene is not gene. attentiveness is trait. x_linked_recessive_inheritance is inheritance.