Answer:
A. Deletion
Explanation:
A deletion is simply the loss of a part of one chromosome arm. The process of deletion requires two chromosome breaks to cut out the intervening segment. ... A small deletion within a gene, called an intragenic deletion, inactivates the gene and has the same effect as other null mutations of that gene.
During mitosis division, each chromosome is duplicated, and then the cells are divided in half. Because there are two copies of the chromosome, the two resulting cells have the same number of chromosomes compared to the first cell.
Lactic Acid buildup during the respiration is the result of Anaerobic Glycolysis.