Sentence examples for but only two populations from inspiring English sources

There are many thousand types of neurons in the brainstem, but only two populations of neurons are known to co-express Phox2b and Atoh1 (which Ruffault et al. call 'Phox2bon/Atoh1on neurons').

Since then, there have been further descriptive studies from Africa of risk factors associated with epilepsy (Prischich et al., 2008; Simms et al., 2008; Ogunlesi et al., 2009; Winkler et al., 2009; Duggan, 2010) but only two population-based case control studies both from Kenya Edwardss et al., 2008; Mung'ala-Odera et al., 2008).

Prospective cohort studies are less sensitive to this bias, but only six population-based cohort studies have reported on alcohol consumption, cigarette smoking and HNC-risk [ 9- 15].

There are only two populations, so disease could easily wipe out an entire population," said McVey.

Resistance to acetamiprid is low, and only two populations have a moderate level of resistance.

This is one of only two populations in the world, the other one being in Uganda.

At the time its Recovery Plan was issued in 1991, only two populations existed across 35 states.

HM is the smallest phylum, represented in our data by only two populations.

However, if there are only two populations, a two-dimensional PC plot is not needed; only the first eigenvector shows the population structure.

If there are only two populations, as shown in the previous section, the pattern in eigenvector 1 is determined only by the relative sample sizes (see Equation (18)).

Only two populations, PO2 and Beijing, showed significant excess of heterozygosity (after the Bonferroni correction, P = 0.031 for both populations), which suggests a recent bottleneck.