Morphological type has implications for treatment and prognosis, and it would be of interest to determine whether morphological type is genetically determined.
The remainder of staging data may be missing for various reasons: certain morphological tumour types have no formal agreed staging system; it was clinically inappropriate to stage the patient; diagnosis and/or treatment was outside the National Health Service; the patient died before staging was complete; or staging information was not transferred to the NCRS.
Such problems occur when the parental types have different alimentary specialisations of morphological types, as is the case for benthic and limnetic sticklebacks [62] or whitefishes [63].
She wrote that, while there are 12 undisputed adult phoronid species, 25 morphological types of larvae have been identified.
At this stage, no obvious morphological differences in ectodermal cell type have been observed, but we nonetheless reveal here a remarkable complexity of regulatory states within the ectoderm (summarized in Figure 1).
Coalescent simulations showed that fixation of song types has occurred faster than expected under neutrality but the null hypothesis that morphological divergence resulted from drift was not rejected.
Two morphological types of C. minus have been defined, termed C. minus 'simile' and C. minus 'verum', based on colony morphology and measurements of apothecial length (Dick et al. 2001).
Two morphological types of the heterochromatin have been described in the pericentromeric regions of Drosophila polytene chromosomes: proximal condensed, α-, andistalal diffuse, β-heterochromatin [ 18].
For instance, the genus Laminaria (that has been recently separated into two different genera, Laminaria and Saccharina; [ 1]) is rich with morphological types, varieties, ecotypes, and forms that have puzzled taxonomists since the very beginning of research on this subject [ 4- 14].
Previously, three morphological types for the cosmopolitan species P. elegans, have been suggested (see for review [93]), supported by high allozymic divergence within the Mediterranean Sea [114].
