Which of the following is an example of genetic engineering?
a. taking advantage of a naturally occurring mutation to produce a more cold-resistant salmon
b. inserting a gene from a flounder into salmon dna to produce antifreeze proteins
c. cross-breeding salmon and flounder to create a hybrid species
d. supporting an aquaculture fish farm with high-protein fish food

The answer to the question above is option B:  Inserting a gene from a flounder into salmon DNA to produce antifreeze proteins. When we say genetic engineering, this is the direct modification of a certain organism's genome with the use of biotechnology. Biotechnology is what is being used in order to make changes on the genetic makeup of the cells. One of the examples is the answer above which is the transfer of genes across or within species, such as the DNA of the flounder to the salmon. The result of this genetic engineering is an improved organism.

Ineed more info for this, i don’t quite understand what you’re asking.

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life.  if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.