Class 12 · Biotechnology and Its Applications

Cry Proteins and Bt Technology — NEET Biology

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📖 NCERT Source

What are Cry proteins? Name an organism that produce it. How has man exploited this protein to his benefit?

NCERT Biology · Class 12 · Chapter 10 · Paragraph 69
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Assertion (A): Transgenic animals can produce human proteins in their milk. Reason (R): The transgenic cow Rosie produced human insulin in her milk at 2.4 grams per litre.

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Correct answer: C If assertion is true but reason is false.

NCERT confirms transgenic animals can produce human proteins in milk. However, NCERT states “In 1997, the first transgenic cow, Rosie, produced human protein-enriched milk (2.4 grams per litre)” - Rosie produced human protein-enriched milk, not specifically human insulin. The Reason incorrectly specifies insulin instead of the general human proteins that were actually produced.

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What does NCERT say about What are Cry proteins?
What are Cry proteins? Name an organism that produce it.
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Which chapter is this from?
Biotechnology and Its Applications, Class 12 NCERT Biology.

Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.

176/180
of the ReNEET 2026 paper (all subjects) was already in the MedicNEET question bank

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