Although life is a continuous process, fertilization is a critical landmark because, under ordinary circumstances, a new, genetically distinct human organism is thereby formed… The combination of 23 chromosomes present in each pronucleus results in 46 chromosomes in the zygote.… — Ronan O'Rahilly Copy Share Image
Although life is a continuous process, fertilization is a critical landmark because, under ordinary circumstances, a new, genetically distinct human organism is thereby formed…… — Ronan O'Rahilly Copy Share Image
