Under the conditions during the evolution experiment, the fitness r of a strain is approximately defined by 1 = ∑ n =0 to m e- r (a + n * b ), where n is a counter for divisions, m is the maximal number of divisions that a cell achieves, a is the age at first division, and b is the interval between consecutive divisions.
Although we assumed that the timing between consecutive divisions is statistically uncorrelated, the exact mechanistic process that promotes crypt fission, such as an overload of stem cells and Paneth cells, is unknown [ 25].
The age at first division for each clonal isolate, a (Fig 2B), was determined by solving the Euler-Lotka equation numerically [ 20], based on the measured growth rate r and the interval between two consecutive divisions b early in life for that isolate.
To measure the interval between two consecutive divisions early in life, b (Fig. 2B), five isolates from each population isolated after 1000 generations of evolution were analyzed.
One game revealed the subtle but crucial differences between the Braves, a team that has captured 12 consecutive division titles, and the Mets, a team that finished in last place the past two years.
The Ravens had won 12 consecutive division games and 23 of their last 24 at home.
They've won nine consecutive division championships and they are not in the World Series.
Everyone else who talks about Atlanta's perennial trip to the playoffs as division champion says the Braves have won 12 consecutive division championships and have appeared in the postseason 12 consecutive times.
Eleven Super Bowl berths, ten consecutive division titles and eight consecutive appearances in the conference championship.
In meiosis, two consecutive divisions segregate first the homologous chromosomes and then the sister chromatids.
