<span>Before answering the question, some explanation about the purpose of flow cytometry.
The cytometry analysis provides us with the presence and the abundance of </span><span>clusters of differentiation (CD), for example, the research of CD2, CD3 and CD4 in lymphocytes.
</span>These CDs will be marked (if they are present) with specific antibodies linked with different fluorochromes, and when the <span>cells exit the flow cell intersect, a laser detects these fluorochromes (representing CDs) and count them.
</span><span>The result will be displayed in a graph showing the frequency of the CDs with spots of different colours.
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The part of the eye that prevent light from reflecting internally and is heavily vascularized to deliver blood to the retina: choroid.
<h3>What is choroid?</h3>
The choroid is highly vascularized to provide blood to the retina and contains dark pigmentation to stop light from reflecting inside. Anteriorly, the choroid, ciliary body, and iris are all joined.. The ciliary body muscles regulate the lens's thickness. The iris acts as a diaphragm, changing the pupil's aperture at its center. This regulates how much light is allowed to enter the retina. In strong light, the iris' muscle fibers constrict the pupil to accommodate close vision; in low light, they enlarge it to accommodate far vision. Each individual's iris is a different color.
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<span>Proteins that are involved in the packaging of eukaryotic chromosome into "beads" called nucleosome are histones.</span>
A nucleosome is a segment of DNA wound in sequence around eight proteins called histones. Together the DNA and the histones form "beads"
A nucleosome is the basic unit of DNA packaging in eukaryotic cells.
