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Nucleated erythrocytes and nucleated thrombocytes are found in the blood of:

  • A.Cat
  • B.Goat
  • C.Horse
  • D.Chicken

Answer: D

Nucleated erythrocytes and thrombocytes are found in the blood of the chicken.

Birds, like reptiles, amphibians and fish, have oval red blood cells that keep their nucleus, and their thrombocytes are also nucleated cells rather than cell fragments.

Mammals such as the cat, goat and horse have red cells that lose their nucleus as they mature, and their platelets are small fragments of megakaryocytes without a nucleus.

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