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Question

Leech does not allow blood clotting by:

A
Heparin
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B
Thromboplastin
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C
Hirudin
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D
Haemophiliac factor
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Solution

The correct option is C Hirudin
  • Hirudin is a powerful anticoagulant. Hirudin is a naturally occurring peptide in the salivary glands of blood-sucking leeches.
  • They produce this to prevent their host from forming a clot so that they can feast on blood more easily.
  • When you apply a leech, the hirudin acts locally at the bite site to allow continued bleeding for 2-3 hours after the leech is removed.
  • So the correct answer is option C- 'Hirudin'.

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