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.
Next stop: fertilization and oocyte activation. Fertilization is the fusion of two haploid gametes to produce a diploid zygote. Each haploid gamete in humans has 23 chromosomes, while the diploid zygote has 46.This fusion usually occurs within 24 hours after the oocyte has been released from the ovary. But before that can happen, our egg and sperm have to meet, and it's not an easy process.ext stop: fertilization and oocyte activation. Fertilization is the fusion of two haploid gametes to produce a diploid zygote. Each haploid gamete in humans has 23 chromosomes, while the diploid zygote has 46.