Sentence examples for accurate ages from inspiring English sources

But researchers are still arguing over whether molecular clocks tick regularly enough to provide accurate ages.

In addition, 68 saplings and seedlings with normal growth were randomly uprooted after recording their height and the number of whorls and scars, and cross-sectional disks were cut from their base stems to determine their accurate ages.

After the DNA testing, the mothers became more forthright about the facts, which allowed the department to determine accurate ages.

Yet, accurate ages can only be based on large numbers of complete mitochondrial genomes, and American mtDNA haplogroups were only poorly represented in the total database of >3000 complete mtDNA sequences until very recently.

Life-history information, such as births, deaths, and dispersal events were recorded, and we knew accurate ages for the majority of the population.

The Bayesian relaxed-clock divergence dating method implemented in BEAST (Drummond & Rambaut, 2007) is generally thought to produce more accurate ages than NPRS (Sanderson, 1997), because it models molecular rate among lineages as varying in an autocorrelated manner and incorporates phylogenetic uncertainty into the dating process.

The onus is on you to establish an accurate age.

Such dates are subject to revision as new and more accurate age determinations are made.

President Obama is right to invest in medically accurate, age-appropriate sex education programs, and to insist on rigorous evaluation of these programs.

The Putting Prevention First Act, co-sponsored by Senators Harry Reid and Hillary Rodham Clinton (who have different views on a woman's right to choose), includes the specific goals Mr. Kristof cites as ways to prevent unintended pregnancies: improved access to birth control, including Plan B; accurate, age-appropriate sex education; and family-planning services for those without health insurance.

A new geological study has set a more accurate age for planet Earth, according to scientists.