If genes from an organism, such as a bacterium, are inserted into a cell of another organism, such as corn, why does the gene still function?

Scientists have inserted a gene from the bacterium Bacillus thuringiensis into corn plants in order to: ... d) by the repetitive sequences such as short tandem repeats ... a) DNA can move throughout the cell, while mRNA stays in the nucleus ... a) that have a sequence of DNA from another organism inserted into them.