The answer is D. Failure of chromosome pairs to separate
Nondisjunction is a condition when sister chromosomes fail to separate proprly during cell division, leaving them with extra cromossom
Nondisjunction is the main cause of genetic abnormality which make an individual suffer from a down syndrome ( causing an intellectual impairment)
Glycolysis-cytoplasm , Krebs Cycle or Critic- mitochondria, Electron Transport Chain- mitochondria
Because of their unique nature a which is eukaryote is any living being whose cells have a cell core and different organelles encased inside layers. Since they can be either multicellular or unicellular those major steps mentioned above are necessary for them
B I think is the correct answer
Answer: A. False, it should read “If a point mutation occurs in a tumor suppressor gene it can become inactivated. This allows the rate of cell division to increase unregulated.”
Explanation: I already know this for a fact.
The first one and the fourth one