Serratia marcescens is normally associated with nosocomial infections like catheter-associated bacteremia. In hospitalized adults, it is very common in urinary tract infections and sometimes in wound infections. Diagnosis in children often find the disease in the gastrointestinal system.erratia Marcescens symptoms are commonly associated with urinary tract infections, but in 30% to 50% of reported cases, there are no symptoms to assist diagnosis.
The joining. of an egg and a sperm is called fertilization, and the cell that. forms is called a zygote (ZI goht). Generally, the egg and the. sperm come from two different organisms of the same species. Following fertilization, mitosis and cell division begins. A new. organism with a unique identity develops.
Meiosis produces four cells that are usually haploid from diploid parent cells. Mitosis is involved with asexual reproduction. Meiosis is always associated with sexual reproduction either before or after sex cell fusion. Both have chromosome replication before the processes begins. Both have similar events prior to nuclear division. Both have the same stages (prophase, metaphase, anaphase, and telophase) although some events in the stages meiosis are different from mitosis. Meiosis has two sequential nuclear divisions.