The products of the fermentation of a sugar are ethanol and
1) water
2) oxygen
3) carbon dioxide
4) sulfur dioxide

3 - Carbon Dioxide

Products of the fermentation process are ethanol, lactic acid, carbon dioxide, hydrogen gas and in special cases acetone and butyric acid.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.