(1) This study detected deficiencies in ir-LHRH in the anterior hypothalamus of eyeless mutants.
(2) The results of protein, phospholipid and enzyme analyses were corroborated by analyses by 'genetic dissection' using an eyeless mutant line.
(3) A mutation that causes adult eyelessness (e eyeless, nonlethal, recessive) affects the earliest event in eye development (stage 1a), while a mutation that causes arrest of eye development (mi microphthalmic, lethal, recessive) acts in a later event (stage 8).
(4) These observations suggest a possible utility of the eyeless mutant axolotl for studies concerned with endocrine development in the absence of hypothalamic modulation.
(5) This arrangement was not observed in eyeless embryos.
(6) The transient expression of n alpha nAChR gene does not take place in the optic tectum of 'eyeless' embryos.
(7) On a Western blot, the antibody recognizes a 41 kDa protein that is present in the heads of yellow white flies, but not in the heads of eyeless mutant flies, eyes absent.
(8) Muscle proteins were quantified in the 1 M LiCl-soluble and distilled water-insoluble fraction of the eyeless, brainless, eviscerated and skinned carcass, as compared with a striated muscle sample from the same animal used as standard and processed in the same way as the whole carcass.
(9) The eyeless subjects showed no blanching (thus remained dark) in white cups, and they exhibited melanin spots 7 or 8 times the size of those of the other two groups.
(10) Prospective anterolateral neural fold was grafted from normal axolotls into the posterior neural fold region (statocyst area) of eyeless mutant hosts.
(11) These unilateral anteroposterior grafts stimulated bilateral eye formation in the eyeless mutant at a rate of 79%.
(12) Histological examination looking for paraldehyde-fuchsin-positive secretory neurons revealed a paired nucleus preopticus in both normals and eyeless mutants, but this region lacked the emanating paraldehyde-fuchsin-positive fiber tracts in eyeless mutants.
(13) Eyeless mutants also expressing a neural mutation were entrained by light:dark (LD) cycles, but their activity pattern in LD was changed compared to the wild-type and the eyeless mutant so.
(14) Brief heating of the oocytes and larvae of eyeless mutants during the critical periods of faceted-eye development caused an increase in the thermal sensitivity of the eye rudiments, which led to an increase in the number of one-eyed individuals among the flies that hatched.
(15) Thirty generations of selection for directional asymmetry of eye size was practiced on a stock of D. melanogaster homozygous for the mutant eyeless-recessive.
(16) Immunochemical studies were done to look at the distribution of immunoreactive luteinizing-hormone-releasing hormone (ir-LHRH) in brains of eyed and eyeless mutant axolotls of different stages.
(17) The eyeless-Dominant (eyD) mutation is a fourth chromosome insertional translocation which affects the eyes, antennae, ocelli, and sexcombs when heterozygous but is a larval-pupal lethal when homozygous.
(18) The aim of the present study was to determine the cellular site of eyeless-I (ey-I) and eyeless-2 (ey-2) gene action, causing anophthalmia or microphthalmia.
(19) The major morphological difference observed in the hypothalamus of normals compared to eyeless mutants was the reduced nature or complete lack of a preoptic recess in eyeless mutants.
(20) A model depicting 2 horizontally positioned black spots resembling facing eyes, as compared with models depicting other spot arrangements, elicits intense flight activity in young African jewel fish (Hemichromis bimaculatus) under 5 months of age and 7-month-old subadults reared apart from conspecifics with eyeless cave fish (Anoptichthys jordani).
Sight
Definition:
(v. t.) The act of seeing; perception of objects by the eye; view; as, to gain sight of land.
(v. t.) The power of seeing; the faculty of vision, or of perceiving objects by the instrumentality of the eyes.
(v. t.) The state of admitting unobstructed vision; visibility; open view; region which the eye at one time surveys; space through which the power of vision extends; as, an object within sight.
(v. t.) A spectacle; a view; a show; something worth seeing.
(v. t.) The instrument of seeing; the eye.
(v. t.) Inspection; examination; as, a letter intended for the sight of only one person.
(v. t.) Mental view; opinion; judgment; as, in their sight it was harmless.
(v. t.) A small aperture through which objects are to be seen, and by which their direction is settled or ascertained; as, the sight of a quadrant.
(v. t.) A small piece of metal, fixed or movable, on the breech, muzzle, center, or trunnion of a gun, or on the breech and the muzzle of a rifle, pistol, etc., by means of which the eye is guided in aiming.
(v. t.) In a drawing, picture, etc., that part of the surface, as of paper or canvas, which is within the frame or the border or margin. In a frame or the like, the open space, the opening.
(v. t.) A great number, quantity, or sum; as, a sight of money.
(v. t.) To get sight of; to see; as, to sight land; to sight a wreck.
(v. t.) To look at through a sight; to see accurately; as, to sight an object, as a star.
(v. t.) To apply sights to; to adjust the sights of; also, to give the proper elevation and direction to by means of a sight; as, to sight a rifle or a cannon.
(v. i.) To take aim by a sight.
Example Sentences:
(1) In a new venture, BDJ Study Tours will offer a separate itinerary for partners on the Study Safari so whilst the business of dentistry gets under way they can explore additional sights in this fascinating country.
(2) Wimbledon said the world No1 Williams had been suffering from a viral illness and it was a sad and bizarre end to the American’s tournament, not to mention a worrying sight, seeing her hardly able to play.
(3) In the midst of all the newspaper headlines and vigils you can sometimes lose sight of the man who was on death row.
(4) Facebook Twitter Pinterest Imogen and her father, John Hull, before he lost his sight.
(5) Their physical condition and performance was found to be comparable with that of normal sighted children.
(6) "At first sight, today's announcement of an independent commissioner is a missed opportunity to strengthen our co-ordinated approach to addressing these very serious matters.
(7) He saw a soldier aim his weapon’s laser sight at the al-Atrashes’ Volkswagen “like he was preparing to shoot”.
(8) Many Iranian women are already pushing the boundaries , and observers in Tehran say women who drive with their headscarves resting on their shoulders are becoming a familiar sight.
(9) The home fans were lifted by the sight of Billy Bonds, a legend in these parts, being presented with a lifetime achievement award before the kick-off and the former West Ham captain and manager probably would have enjoyed playing in Allardyce's combative midfield.
(10) This results from a lack of knowledge of what could be done to conserve sight, the irreversible nature of many eye diseases, the distances involved in travelling to the clinic, and even a lack of knowledge of its existence.
(11) However, this operation may not be as sight effective as many believe.
(12) The results of excimer laser photorefractive keratectomy (PRK) in 16 blind and 120 sighted eyes (136 patients) are presented.
(13) It is now a well-known fact that the human body is able to use luminous stimulation for aims other than sight; the pineal gland, though no longer directly sensitive to light as in lower animals, is nevertheless the fulcrum of a complex neuro-endocrine system which makes an interaction between light and the human body possible by means of the production of a number of substances of which melatonin is the most widely investigated.
(14) Senior government sources have confirmed the budget razor gang has the fuel tax credit (formerly known as the diesel fuel rebate) “firmly in its sights” – a scheme that rebates miners and farmers and others for the off-road use of diesel.
(15) The National Society to Prevent Blindness, formed in 1908, is the oldest voluntary agency with the singular mission to preserve sight and prevent blindness through a broad program of public and professional education, industrial and community services, and research.
(16) Inside the Islamic State ‘capital’: no end in sight to its grim rule Read more The Kurdish People’s Protection Units (YPG) militia and an alliance of rebels known as the “Euphrates Volcano” – backed US-led coalition air strikes – have seized swaths of territory from Isis, including the strategic border town of Tal Abyad .
(17) When vertically divergent eye movements occur, both eyes also systematically rotate in parallel around their lines of sight (conjugate cyclotorsion).
(18) The Greek finance ministry's financial crimes unit conducted the raids, and says it has many other groups in its sights.
(19) The incumbent mayor has set his sights on stronger powers over the London economy as he seeks re-election for a second term on 3 May.
(20) The classical age-related problems of poor hearing, poor sight and difficulty in chewing were also prevalent among these elderly.