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What are Cry proteins? Name an organism that produce it. How h
Biology
Biology

Class 12

NCERT

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: Reproduction in Organisms

18 questions

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2

Chapter 2: Sexual Reproduction in Flowering Plants

18 questions

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3

Chapter 3: Human Reproduction

21 questions

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4

Chapter 4: Reproductive Health

12 questions

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5

Chapter 5: Principles of Inheritance and Variation

16 questions

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6

Chapter 6: Molecular Basis of Inheritance

14 questions

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7

Chapter 7: Evolution

10 questions

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8

Chapter 8: Human Health and Disease

17 questions

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9

Chapter 9: Strategies for Enhancement in Food Production

12 questions

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10

Chapter 10: Microbes in Human Welfare

15 questions

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11

Chapter 11: Biotechnology: Principles and Processes

12 questions

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12

Chapter 12: Biotechnology and its Applications

10 questions

Q1
Compare and contrast the advantages and disadvantages of production of genetically modified crops.
Q2
What are Cry proteins? Name an organism that produce it. How has man exploited this protein to his benefit?
Q3
What is gene therapy? Illustrate using the example of adenosine deaminase (ADA) deficiency.
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13

Chapter 13: Organisms and Populations

17 questions

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14

Chapter 14: Ecosystem

13 questions

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15

Chapter 15: Biodiversity and Conservation

10 questions

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16

Chapter 16: Environmental Issues

11 questions

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

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Updated on: Nov 15, 2022

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Biology (NCERT)

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Cry protein is a toxic crystal protein encoded by cry gene which is toxic to certain insects. It is produced by Bacillus thuringiensis bacteria in an inactive form. Activation of cry protein takes when ingested by insects, due to the alkaline ph of guts. Epithelial cells of the gut are lysed which leads to the death of insects. Humans are taking advantage by incorporating BT toxin gene in crops to form transgenic crops which are insect resistant e.g., BT cotton.
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Question Text
What are Cry proteins? Name an organism that produce it. How has man exploited this protein to his benefit?
Updated OnNov 15, 2022
TopicBiotechnology and its Applications
SubjectBiology
ClassClass 12
Answer TypeText solution:1 Video solution: 1
Upvotes174
Avg. Video Duration23 min