The right answer is A mutation.
Alteration of the genetic material (DNA or RNA) of a cell or virus that causes a change in certain traits due to the inheritance of this genetic material from generation to generation.
Abnormal modification of the DNA of a gene, either spontaneously during cell division, or under the influence of external agents called mutagens. This gene is modified to be transmitted to the daughter cells. Some mutations have no effect on the cell. Others are the first step in a long process of cancerization.
Rare are the mutations that are beneficial.
The answer is choice B.
Nondisjunction happens when the chromosomes don't separate correctly during meiosis, which can result in an extra copy of certain chromosome.
I hope this helped a little bit.
I'm not sure but if you are talking about cells I think it is cytoplasm.
Answer:
Answer: The correct option is C
Explanation:
The glycolytic pathway involves the oxidation of glyceraldehyde 3-phosphate.
Glyceraldehyde 3-Phosphate is oxidized by NAD+ and an inorganic phosphate is incorporated into the product to form an acyl-phosphate, 1,3-bisphosglycerate, which is an energy rich intermediate. NAD+ is reduced by the transfer of an hydride ion to form NADH. Once NADH is formed, its affinity for the enzyme decreases so that the free NAD+ displaces this NADH. The energy released by the oxidation of the substrate is conserved in the terminal phosphoanhydride bond of ATP via the formation of high energy intermediates.
Thus the oxidation/reduction is necessary to produce NADP which is required for ATP synthesis.
