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  2. Howell–Jolly body - Wikipedia

    en.wikipedia.org/wiki/Howell–Jolly_body

    Spleens are also removed for therapeutic purposes in conditions like hereditary spherocytosis, trauma to the spleen, and autosplenectomy caused by sickle cell anemia. Other causes are radiation therapy involving the spleen, such as that used to treat Hodgkin lymphoma .

  3. Heterozygote advantage - Wikipedia

    en.wikipedia.org/wiki/Heterozygote_advantage

    The pathogen that causes the disease spends part of its cycle in the red blood cells and triggers an abnormal drop in oxygen levels in the cell. In carriers, this drop is sufficient to trigger the full sickle-cell reaction, which leads to infected cells being rapidly removed from circulation and strongly limiting the infection's progress.

  4. Blue whale - Wikipedia

    en.wikipedia.org/wiki/Blue_whale

    The blue whale is a slender-bodied cetacean with a broad U-shaped head; thin, elongated flippers; a small 33 centimeters (13 in) sickle-shaped dorsal fin located close to the tail, and a large tail stock at the root of the wide and thin flukes. The upper jaw is lined with 70–395 black baleen plates. The throat region has 60–88 grooves which ...

  5. Sickle-gloss - Wikipedia

    en.wikipedia.org/wiki/Sickle-gloss

    Sickle-gloss, also known as sickle sheen, is a silica residue found on blades such as sickles and scythes. Its presence indicates that the tool has been used to cut the stems of cereals, which are rich in silica. The gloss or residue forms due to the abrasive action of silica found in both wild and cultivated cereal grasses.

  6. Sickle (horse) - Wikipedia

    en.wikipedia.org/wiki/Sickle_(horse)

    Sickle (8 February 1924 – 26 December 1943) was a British-bred thoroughbred racehorse who was later exported to the US where he was twice the leading sire in North America. He was bred by Edward Stanley, 17th Earl of Derby.

  7. Hemoglobin electrophoresis - Wikipedia

    en.wikipedia.org/wiki/Hemoglobin_electrophoresis

    The test uses the principles of gel electrophoresis to separate out the various types of hemoglobin and is a type of native gel electrophoresis.After the sample has been treated to release the hemoglobin from the red cells, it is introduced into a porous gel (usually made of agarose or cellulose acetate) and subjected to an electrical field, most commonly in an alkaline medium.

  8. Poikilocytosis - Wikipedia

    en.wikipedia.org/wiki/Poikilocytosis

    Poikilocytes may be oval, teardrop-shaped, sickle-shaped or irregularly contracted. Normal red blood cells are round, flattened disks that are thinner in the middle than at the edges. A poikilocyte is an abnormally-shaped red blood cell. [1]

  9. RT-2PM Topol - Wikipedia

    en.wikipedia.org/wiki/RT-2PM_Topol

    Artist's depiction of a RT-2PM in Siberia. The RT-2PM Topol [3] (Russian: РТ-2ПМ Тополь ("Poplar"); NATO reporting name SS-25 Sickle; GRAU designation: 15Ж58 ("15Zh58"); START I designation: RS-12M Topol) [4] was a mobile intercontinental ballistic missile designed in the Soviet Union and in service with Russia's Strategic Missile Troops.