What's the difference between paramere and symmetrical?
Paramere
Definition:
(n.) One of the symmetrical halves of any one of the radii, or spheromeres, of a radiate animal, as a starfish.
Example Sentences:
(1) A pachytene chromomere map is presented, as is evidence suggesting that the parameres are disposed in two lateral loops, each of which is coaxial with one of the homologs.
(2) The parameres are joined to each other and to the rest of the chromosome by interconnecting fibres.
(3) No evidence was obtained for the organisation of parameres into paired lateral loops, as proposed by previous workers using light microscopy.
(4) The secondary constriction organizes into "paramere" bodies during pachytene.
(5) Time required is 20 min for uptake of renograms and 5 min for processing and output, thus allowing routine execution of good quality renography, including hardcopy printout of both kidney uptake curves and diagnostic paramerers.
(6) Stereophotographs of stacks of plates from electron micrographs of serial ultrathin sections show the parameres in their in situ configuration to be composed of tightly compacted fibrils, 85-90 A in diameter.
(7) The most common arrangement is clusters on the axis of the bivalent, consisting of varying numbers of parameres of variable size.
(8) The individual parameres are comprised of one family of repeated DNA sequences.
(9) One chromosome of the C group, number 9, had a diffuse subcentromeric region (DSR) on the long arm, at the position of the constitutive heterochromatin and (in meiotic cells) the paramere.
(10) During prophase stages of the first meiotic division in human males, an autosomal divalent in the C group (autosomes 6-12) characteristically has associated with it, at a specific locus, small, DNA-containing bodies (parameres).
(11) Parameres appear to be denser than other parts of the chromosomes but have a similar fibrous substructure.
(12) The structure and arrangement of the parameres, which are small bodies representing part of the heterochromatin of human chromosome 9 at pachytene, were studied using transmission and scanning electron microscopy.
Symmetrical
Definition:
(a.) Involving or exhibiting symmetry; proportional in parts; having its parts in due proportion as to dimensions; as, a symmetrical body or building.
(a.) Having the organs or parts of one side corresponding with those of the other; having the parts in two or more series of organs the same in number; exhibiting a symmetry. See Symmetry, 2.
(a.) Having an equal number of parts in the successive circles of floral organs; -- said of flowers.
(a.) Having a likeness in the form and size of floral organs of the same kind; regular.
(a.) Having a common measure; commensurable.
(a.) Having corresponding parts or relations.
Example Sentences:
(1) Bilateral symmetric soft-tissue masses posterior to the glandular tissue with accompanying calcifications should suggest the diagnosis.
(2) In one patient, the pretibial myxedema developed symmetrically half a year after the appearance of endocrine exophthalmos.
(3) A constellation of histologic lesions was identified in brain (diffuse meningoencephalitis with bilaterally symmetrical thalamic necrosis), liver (pericholangiohepatitis), lung (pneumonitis), and spleen (lymphoid hyperplasia); this tetrad is apparently unique to this model system.
(4) For trials in which the target was present in the array, RT functions were roughly symmetric, the shortest RTs being for extreme distractor ratios, and the longest RTs being for arrays in which there were an equal number of each distractor type.
(5) Symmetrical cases (the so-called siamese twins) have an obvious predominance (92.3%).
(6) Sedimentation-velocity experiments indicate the M. elsdenii enzyme (s20,w = 4.95 S) to be essentially globular, while the D. vulgaris enzyme (s20,w = 4.1 S) has a less symmetric shape.
(7) The Soret MCD of the reduced protein is interpreted as th sum of two MCD curves: an intense, asymmetric MCD band very similar to that exhibited by deoxymyoglobin which we assign to paramagnetic high spin cytochrome a3(2+) and a weaker, more symmetric MCD contribution, which is attributed to diamagnetic low spin cytochrome a2+.
(8) In the perineuronal neuropil of large pyramidal neurons (layers V-VI) there appear symmetric synapses with pyramidal cells, dendritic processes and dendritic spines.
(9) After injection of HRP-WGA into the contralateral hippocampus 2% of hilar NPY-i neurons were retrogradely labeled and symmetric NPY-i synapses were found on the cell bodies and dendrites of unstained HRP-WGA labeled neurons.
(10) Pompholyx (Dyshidrosis) is a disease of unknown etiology presenting as symmetrical, vesicular hand and foot dermatitis.
(11) In the degradation reaction, formation of the symmetrically substituted citrate ester of codeine, 1, was found to predominate.
(12) The symmetrical reagent 5,5'-dithiobis-(1-methyltetrazole) activates mitochondrial aldehyde dehydrogenase approximately 4-fold, whereas the smaller related compound methyl l-methyltetrazol-5-yl disulphide is a potent inactivator.
(13) We studied the effect of symmetric, biphasic sinusoidal electromagnetic fields (EMF) (20 Hz, 6 mT) on the differentiation of normal human skin fibroblasts (HH-8), normal human lung fibroblasts (WI38), and SV40-transformed human lung fibroblasts (WI38SV40) in in vitro cultures.
(14) According to X2 (Chi-square) test and asymmetry coefficient (beta 1) it was pointed out that the distribution of menarche in examined schoolgirls was normal and symmetric.
(15) The effect of luminal chloride addition was examined in tubules perfused symmetrically with chloride-free solutions.
(16) Any patient with a fairly symmetrical 'quiet' eye disease, especially if congenital, should be suspected of having an hereditary disease--presumably due to a recessive gene, even if the parents are not consanguineous, but possibly due to a mutation which could prove dominant; a search of the literature in such cases is useful.
(17) In all of the old rats, but not in any of the young ones, symmetric high voltage activity was observed in the frontal pole of the cortex.
(18) Flourescence characteristic of indolamine was seen in 5 pairs of symmetric neurons situated in the anterior part of the worm.
(19) The thiocarboxyl group reacts with diaryl disulfides to give an unsymmetrical acyl disulfide in dimethylformamide (DMF) and a symmetrical diacyl disulfide in aqueous DMF.
(20) The authors describe the radiographic appearance and the investigation techniques for circumscript lipoma in the subcutaneous tissue, in the muscles and for a large diffuse symmetric lipomatosis.