from these data were derived the geometric mean of the number ( n ) of rohon-beard neurons ( or primary motoneurons ) that descended from a single progenitor at each generation from the first to ninth , the mean number of progenitors of each generation , and the probability that , following mitosis , daughter cells continue in the rohon-beard ( or primary motoneuron ) lineages ( the continuation probability ) .
C0026255
mitosis
C0007634
cells