Multiple choice

Which one of the following terminologies is not correctly defined?

  1. PrP: A protein present in the arterial system of animals

  2. Pronuclear injection: The process of a fine needle to inject DNA into the nucleus of an unfertilized egg

  3. Resistance management: Strategies that can delay the onset of resistance

  4. Transgenic plants: Plants that have manipulated DNA to possess and express an extra gene

  5. Bt: A bacterium that attacks and kills insects
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A Correct answer
Explanation

Prion-related protein or PrP is a normal protein, expressed in the nervous system of animals, whose structure when altered (by interaction with altered copies of itself) is the cause of scrapie in sheep, BSE in cattle and Creutzfeldt-Jakob disease in humans.

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