DNA provides the information necessary to take a bunch of lifeless chemicals and turn them into a order, living systems. "Hope this helps! Have a great day! Thank you for posting your questions!"
As we can see in the pedigree, both of the parents do not possess the trait, but one of the four offspring (marked with red) is expressing the trait.
Since the trait is recessive, the only way that is possible that the parents who do not possess the trait to have the offspring with the trait is that the parents are heterozygous for the trait. Meaning that both of the parents have one dominant allele and one recessive allele.
Well its easy the Bt gene is inserted into one plant cell by using a bacterial plasma.