Sentences with phrase «pigment granules»

"Pigment granules" are small particles that contain color. They are found in things like paint, ink, and living organisms like animals and plants. These granules determine the color of something and give it its hue or shade. Full definition
A black Lab or Boerboel will have a different type of pigment granule in those hair shafts.
Such a dog will carry the genes for arranging pigment granules in the nose and other integument to show black, liver, or blue, but nothing at the E locus that allows anything other than tan hairs (or tan with brindle striping).
The presence of intracellular pigment granules along with the absence of a subretinal cellular debris zone raise the possibility that these donor cells have (or acquire) the capacity to phagocytose surrounding waste material.
Before you start arguing, try to see that black and liver (chocolate) are simply modifications of black pigment granule arrangements in the cells.
The cortical cells are fibrous and contain pigment granules of varying darkness that give hair strands their natural color.
«Cephalopods have evolved to incorporate these specific pigment granules for a reason, and we're starting to piece together what that reason is.»
Matthew Shawkey, a biologist at the University of Akron in Ohio who has been working with dinosaur researchers to figure out the colors of those prehistoric beasts, adds that the study should help sway those skeptics who think that the melanosomes detected in some fossil specimens are really bacteria and not pigment granules.
Abstract Purpose: To test the effect of tetrahydropyridoethers (THPE) on pigment granules of the retinal pigment epithelium (RPE), monkeys (Macaca fascicularis) were orally treated with this drug for up to one year.
In previous studies using other donor cell types, significant intraretinal migration was not seen [39], [41], nor were pigment granules found in donor cells not originally derived from RPE [39].
(B) High power image showing pigment granule - containing donor cells in the RPE - L region that are positive for human nuclear marker (arrows).
Thus a yellow Lab or red - tan Boerboel will have hair pigment granules reflecting wavelengths of light in the red - yellow range of the spectrum.
The E locus (let's use E or e to stand for Expression) tells the body whether or not to create and deposit pigment granules that show up as black or dark (including liver and blue) in the coat.
A population of these cells forms a layer deep to the photoreceptors, where they contain intracellular pigment granules and appear superficially like an extra RPE layer, even though they do not express at least two characteristic RPE proteins.
E / e for the extension alleles that govern the distribution, if any, of black pigment granules.
The quantification of pigment granules was performed by transmission electron microscopy.
In a paper published last week in Advanced Optical Materials, Deravi's group describes its work in isolating the pigment granules within these organs to better understand their role in color change.
There is a pigmented RPE - like (RPE - L) layer of donor cells above the host RPE layer, whereas donor cells in the inner retina do not have pigment granules (right - pointing arrows).
One population is non-pigmented and diffusely distributed within the inner retina, while the other is a pigment granule - containing, RPE - like layer located between the host neurosensory retina and RPE.
Donor cells comprising the semi-continuous subretinal layer possessed intracellular pigment granules (confirmed on semi-thin sections) similar to host RPE cells, unlike those that migrated within the neurosensory retina, which remained unpigmented (Figure 5B).
Another allele, on a different chromosome locus, can cause the arrangement or packed density of pigment granules to give a brownish color in areas that are commonly black in many breeds: nose, dorsal haircoat, etc..
While the color black in the Boerboel, Labrador, Great Dane, or some other breed is caused by a gene (more accurately, a gene pair) on one locus of the chromosome, such a gene can have a variation (allele) that codes for a minor difference in how the pigment granules are arranged in the hair shaft or the integument cells.
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