It has been a while since I had biology but the answer is polymerase chain reaction because the DNA is copied by the body itself and nothing else is brought into it.
Leslie argues that an organism called a Euglena is a plant because it is eukaryotic, has a nucleus, makes its own food, and is unicellular. Where is Leslie's error? Plants do not make their own food..
when soaked in dilute sodium chloride solution onion gain mass because of the process of osmosis. Explanation: Osmosis is a process when there is movement of water from the region of comparatively higher concentration to the region of lower concentration across in a permeable membrane.