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Question

In which one of the following pairs, the two items mean the same thing?

A
Haemophilia - Blood cancer
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B
SA-node - Pacemaker
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C
Malleus - Anvil
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D
Leucocytes-Lymphocytes
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Solution

The correct option is B SA-node - Pacemaker
  • Hemophilia is an X-linked recessive disorder and is characterized by impaired ability or inability of blood clotting which causes heavy blood loss even in the case of small injury.
  • Pacemaker serves to produce rhythmic impulses for a heartbeat. The sinoatrial node (SA) node serves as a pacemaker.
  • Malleus is one of the ear ossicles. Its shape resembles a hammer.
  • Leucocytes refer to white blood cells and lymphocytes are just a type of leucocyte. That means all leukocytes are not lymphocytes.

So the correct answer is option B.

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