The answer should be B the DNA is damaged so new cells grow and create tumors etc.
Microinjection is a simple mechanical process usually involving an inverted microscope with a magnification power of around 200x (though sometimes it is performed using a dissecting stereo microscope at 40–50x or a traditional compound upright microscope at similar power to an inverted model).
Topography is the rise and fall of the land (AKA B)
RNA and DNA are both types of nucleus acids. In their names long names, they both have the words “nucleic acid” in them. Nucleic acids are composed of carbon, hydrogen, oxygen, nitrogen, and phosphorus.
