Which of the following are true statements about immunohistochemistry and in situ hybridization? More than one answer can be correct, so please choose all the true answers. Immunohistochemistry is used to detect where a protein is expressed in an embryo. In situ hybridization is used to detect where an mRNA is expressed in a developing embryo. Immunohistochemistry uses an antibody as a probe. In situ hybridization uses a DNA fragment as a probe. Immunohistochemistry uses color development as a means to visualize the detected molecule. In situ hybridization uses color development as a means to visualize the detected molecule.