If you wish to rid an experimental organism of the function of a gene, you can use RNAi. What would you inject into the organism?
A)co-suppressor with double-stranded (ds)DNA
B)ssRNA complementary to cDNA
C)ssRNA complementary to mRNA
D)dsRNA homologous to the gene
E)dsRNA including transposase

Question

Quizplus · Accepted Answer

dsRNA homologous to the gene is the best choice for RNA interference (RNAi). This dsRNA will be processed into small interfering RNAs (siRNAs) that are complementary to the mRNA transcript of the targeted gene. The siRNAs will then associate with other proteins to form the RNA-induced silencing complex (RISC) that will cleave the mRNA transcript, effectively silencing the expression of the target gene.

If You Wish to Rid an Experimental Organism of the Function