A. the two new cells created when cells divide
Answer:
When electrons move through a series of electron acceptor molecules in cellular respiration, <em>oxygen is eventually reduced by the electrons in the formation of water</em>
Explanation:
The electron transport chain is located in the internal mitochondrial membrane. There are three proteinic complexes in the membrane, I, II, and III, that contain the electrons transporters and the enzymes necessary to catalyze the electrons transference from one complex to the other. Complex I contains the flavine mononucleotide -FMN- that receives electrons from the NADH. The coenzyme Q, located in the lipidic interior of the membrane, conducts electrons from complex I to complex II. The complex II contains cytochrome b, from where electrons go to cytochrome c, which is a peripheric membrane protein. Electrons travel from cytochrome c to cytochromes a and a3, located in the complex III. Finally, electrons go back to the matrix, where they combine to H₊ ions and oxygen, to form the water molecule. As electrons are transported through the chain, protons are bombed through the three proteinic complexes from the matrix to the intermembrane space.
Answer:
A. Fragments of DNA that have desired genes are isolated to form recombinant DNA for use in a host.
Explanation:
Genetic engineering, also known as genetic modification, is a technique that involves the manipulation of an organism's genome using biotechnology procedures. The purpose of genetic engineering is to create an organism with desirable traits.
Genetic engineering involves series of steps, however, the very first step is that of DNA EXTRACTION. The fragments of DNA that have desired genes are isolated from the involved organism. The extracted DNA called the recombinant DNA, which is inserted into the host genome.
