Answer:
DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation. A DNA sample taken from a crime scene is compared with a DNA sample from a suspect. If the two DNA profiles are a match, then the evidence came from that suspect.
Genome.Gov
It is true that genetic engineering has already been used to increase plant production. Genetic engineering has been used to a great extent in the plant and food categories.
The conversion of glutamate to ornithine requires the use of enzymes that are produced by E. coli. Instead of going into the citric acid cycle, glutamate goes into the urea cycle and converts into ornithine. Mycelial pads of the ornithine is supplied the microorganism.
The four polysaccharides are glycogen, starch, cellulose, and chitlin. You consume them. They are sometimes artificially made or produced by your body.