In the process of gametogenesis, nondisjunction during meiosis II results in at least one pair of sister chromatids failing to separate. Consequently, this leads to the formation of two cells containing the typical haploid chromosome count (n), one cell with an additional chromosome (n + 1), and a fourth cell missing a chromosome (n - 1). To summarize, the outcome is two gametes with n, one with n + 1, and one with n - 1.
Carbon dioxide is produced during cement production as a result of burning fossil fuels.
This is likely due to a potential microbial infection, often linked with bacterial, which is the most common, and fungal infections.