Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Frequency of death (dx) for cohorts of Caenorhabditis elegans (strains N2, clk-1, and daf-2) individuals maintained on nematode growth medium and OP-50 at 20°C (n=1000, 800, and 800 for N2, clk-1, and daf-2, respectively) with survival and reproduction monitored daily (bootstrap 95% confidence intervals shown).
