A human cell contains 23 pairs of homologous chromosomes: 22 of them are homologous non-sex chromosomes (or autosomes) and 1 homologous pair of sex chromosomes. In females, the homologous sex chromosomes are 2 Xâs; in males the X and Y chromosomes.
Salmonella is caused by the Salmonella genus of bacteria, specifically salmonella enteridica.alaria is caused by organisms of the genus Plasmodium, a parasite  that infects human red blood cells.
Salmonella are a group of bacteria that can cause food poisoning. Food poisoning occurs when food or water contaminated with germs (microbes), poisons (toxins) or chemicals is eaten or drunk. Microbes include bacteria, viruses and parasites.Parasites are living things (organisms) that live within, or on, another organism. Typically, food poisoning causes an infection of the gut (intestines), called gastroenteritis.This infection leads to to diarrhoea and being sick (vomiting). There are over 2,500 different strains (subtypes) of salmonella. One type of salmonella, Salmonella typhi (S. typhi), can cause typhoid fever.dults. If you have gastroenteritis from any cause (including possible food poisoning caused by salmonella), you should seek medical advice in any of the following cases (or if there are any other symptoms that you are concerned about): 1  If you suspect that you are becoming dehydrated.