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Overall, mean cell chiasma frequencies of the two sexes did not differ significantly once the contribution of the presumptive X bivalent and the XY pair were taken into account.
      
To determine to what extent these dimorphisms are due to differences in male versus female meiotic prophase development, we compared meiotic chromosome events in the two sexes in both wild-type and mutant mice.
      
Suicide by firearms showed marked male predominance, whereas the sex ratio for homicide was rather equal between the two sexes.
      
No significant difference was established between the two sexes regarding ALAD and CPU values, when considered at the same PbB levels.
      
When comparing maximal oxygen uptake per kg lean body mass in the two sexes, the boys had 18.4% higher values than the girls, indicating that girls of this age have the lower fitness level.
      
However, differences were found between the two sexes.
      
Asymmetry and relative growth of parts in the two sexes of the hermit-crab, eupagurus priedeauxi
      
Many basic cellular processes are shared across vast phylogenetic distances, whereas sex-determining mechanisms are highly variable between phyla, although the existence of two sexes is nearly universal in the animal kingdom.
      
While in the second group there is a prevalence of the female sex and in the 3rd group of the male, in the 4th group the two sexes are uniformly distributed.
      
No differences were observed between the two sexes.
      
The rate of growth in body size and composition is identical for the two samples, but different for the two sexes, and follows closely the trend of growth which has been found for North-Europeans in general.
      
With none of these substrates does S-ethyl-l-cysteine affect the P/O ratio in either of the two sexes, nor does either ethionine or S-ethyl-l-cysteine significantly alter the
      
Morphological remodelling in the yellow-bellied marmot mandible seems to be more concerned with changes in size and behaviour during growth than with ethological differences between adults of the two sexes.
      
Moreover, relative FA measurements of females and males from the same host were not significantly correlated, contrary to expectation if hosts imposed similar selection pressures on parasites of the two sexes.
      
6) Since the phenotype of mei-S332 is similar in the two sexes, at least part of the meiotic events and their control for the second division and perhaps also the first division is the same in the two sexes.
      
The occurrence of germinal mosaicism in some of the mothers of Duchenne cases may account for this peculiar finding, although a possible role of inequality of mutation rates in the two sexes cannot be ruled out.
      
The dimorphism presumably reflects differences in the acoustic behavior in the two sexes.
      
Moreover, we demonstrated that the rate of neurogenesis in the anterior AOB of the two sexes was significantly different.
      
This pattern has been interpreted as demonstrating environmenal heterogeneity, the two sexes having different habitat preferences.
      
We examined the responses of the two sexes to variation in nutrient and moisture availability plant density, and defoliation.
      
 

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