Hi there,
The process is called Transcription (mRNA) which is messenger RNA. It occurs in the nucleus of the cell. However, after being copied the RNA leaves the nucleus. Hope it helps.
Electrons are brought to the electron transport system by the oxidation of NADH and FADH2.
The electron transport chain is a group of proteins located within the inner membrane of the mitochondria which transport electrons. Electrons are passed from one member of the transport chain to another in a series of redox reactions, forming a proton gradient which is then used for ATP production.
NADH and FADH2 are reduced electron carriers which are oxidized into NAD+ and FAD near the beginning of the electron transport chain.
Answer:
Complex is the right answer