What's the difference between paramere and starfish?
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.
Starfish
Definition:
(n.) Any one of numerous species of echinoderms belonging to the class Asterioidea, in which the body is star-shaped and usually has five rays, though the number of rays varies from five to forty or more. The rays are often long, but are sometimes so short as to appear only as angles to the disklike body. Called also sea star, five-finger, and stellerid.
(n.) The dollar fish, or butterfish.
Example Sentences:
(1) The kinetics of the membrane current during the anomalous or inward-going rectification of the K current in the egg cell membrane of the starfish Mediaster aequalis were analyzed by voltage clamp.
(2) Using tubulin immunostaining, we found that 6-DMAP did not affect the cortical microtubules and resting female centrioles of prophase-arrested starfish oocytes, whereas it induced a precocious disappearance of spindle fibers when applied to hormone-stimulated oocytes.
(3) When he sits back at the piano and plays Raspberry Beret and Starfish and Coffee and Girls and Boys, they’re beside themselves, and understandably so: he sounds magnificent.
(4) The cockle Cardium tuberculatum responds with a typical escape movement (jumping by foot contractions) when touched by a starfish.
(5) Since these characteristics of the starfish egg poly(A)+ RNA are similar to those of cyclin mRNAs from sea urchin and surf clam eggs, we synthesized a 50-mer antisense-cyclin oligonucleotide probe coding for a part of the sea urchin cyclin cDNA and used this to screen starfish RNA.
(6) The cellular events that take place during reconstruction of larval forms from dissociated embryonic cells of the starfish are investigated by thick and thin sections.
(7) Primary afferent electrical activity can be recorded from the chemoreceptors on the mantle margin that are responsive to starfish scent and also from other physiologically distinct receptors that are responsive to contact with starfish tube feet.
(8) A cDNA clone encoding starfish cyclin B has been isolated and its sequence determined.
(9) The changes in activity of a cytoplasmic maturation-promoting factor (MPF), capable of inducing resumption of meiosis when injected into starfish oocytes, were examined during mouse oocyte maturation.
(10) 1-Methyladenine (1MeAde) is the naturally occurring maturation-inducing hormone of starfish oocytes.
(11) The marine gastropods Acmaea (Collisella) limatula and Acmaea (Notoacmea) scutum respond to distant predatory starfish (i.e.
(12) "There are a number of threats facing the reef, including climate change, coastal developments, agricultural runoff, ocean acidification and outbreaks of the crown-of-thorns starfish.
(13) Fatty acid hydroperoxides (lipoxygenase products) are metabolized to allene oxides by a type of dehydrase that has been detected in plants, corals, and starfish oocytes.
(14) Ross said researchers have identified four new species of fish, a new type of starfish and several new species of crustaceans living in the deepwater reefs.
(15) An assessment by the Great Barrier Reef Marine Park Authority cited climate change as the leading threat to the coral ecosystem, with pollution, extreme weather events, and a plague of coral-eating starfish also contributing to its malaise.
(16) This has come about because links have been established between two independent areas of research, one based on a genetic approach using the fission yeast Schizosaccharomyces pombe and the second based on a biochemical approach using Xenopus and starfish oocytes.
(17) In the presence of 1 mM hydroxyurea, fertilized eggs of the starfish, Asterina pectinifera, cleaved up to the 256-cell stage and decomposed before blastulation.
(18) Porcine brain tubulin labeled with fluorescein isothiocyanate (FITC) was able to polymerize by itself and co-polymerize with tubulin purified from starfish sperm flagella.
(19) Although caffeine, theophylline, and theobromine supposedly inhibit maturation of oocytes, studies using the starfish oocyte showed that theobromine does not inhibit maturation and the inhibition caused by caffeine and theophylline is reversible.
(20) The acrosome reaction of spermatozoa from the starfish Marthasterias glacialis was induced with the ionophore A23187.