In the experiment presented in Figure 17.5, were Fire and Mello injecting pre-miRNA or pre-siRNA? Explain.

Figure 17.5

a Sense RNA Experimental level Single row of eggs- Add RNA polymerase and nucleotides to cloned genes. Antisense RNA Antisense RNA or a mixture of sense and antisense RNA Add labeled probe. Conceptual level Sense RNA Promoter mex- RNA gene polymerase mex-3 gene -Antisense RNA Promoter Labeled probe -Embryo mex-3 mRNA