BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS
BLOOD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which test is used to determine if a blood sample is human?
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Kastle-Meyer
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Luminol
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Precipitin
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Huminal
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Explanation:
Detailed explanation-1: -He later took the serum containing the antibodies (the precipitin) and incubated it with the bacterial filtrates (the antigen) and got a precipitation reaction (AbAg reaction). From there, investigators use the precipitin test to determine whether the blood is of animal or human origin.
Detailed explanation-2: -Precipitin test identifies the presence of proteins that are found only in human blood. On the surface of red blood cells are molecules (proteins) called antigens. Antigens allow a living system to recognize foreign biological substances, such as infectious agents and allergens.
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