Answer:
Given that a negatively charged rod is brought closer to two metal spheres which are in contact with each other as shown: So, free electrons from rod will be attracted towards the metal spheres.
-DNA is the blueprint for proteins, which play many roles in the body. PROTEINS play many roles in the body and determine many traits. The section of DNA that codes for a specific trait is called a GENE. In fruit flies, straight wings are dominant and curly wings are recessive.
Plasmids are small DNA fragments that occur in many bacterial cells.
O2 (oxygen) is a covalent compound
Because it codes for specific proteins and contains the genetic instructions needed in order for an organism to survive, develop and reproduce
