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Q. No.Some strains of Bacillus thuringiensis produce proteins that kill certain coleopterans that include:
1.
Tobacco budworm
2.
Armyworm
3.
Beetles
4.
Mosquitoes
Subtopic: Bt Crops |
77%
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Identify the incorrect statement:
| 1. | B. thuringiensis forms protein crystals during a particular phase of its growth. |
| 2. | The protein crystals contain a toxic insecticidal protein. |
| 3. |
Once an insect ingests the inactive toxin, it is converted into an active form of toxin due to the acidic pH of the gut.
|
| 4. | The activated toxin binds to the surface of midgut epithelial cells and creates pores that cause cell swelling and lysis and eventually cause the death of the insect. |
Subtopic: Bt Crops |
90%
From NCERT
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The proteins encoded by the gene cryIAb controls:
| 1. | corn borer | 2. | cotton bollworms |
| 3. | aphids | 4. | flea hopper |
Subtopic: Bt Crops |
84%
From NCERT
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Root knot in Tobacco is caused by the nematode:
1. Heterodera avenae
2. Anguina tritici
3. Globodera pallida
4. Meloidogyne incognita
1. Heterodera avenae
2. Anguina tritici
3. Globodera pallida
4. Meloidogyne incognita
Subtopic: Interference RNA Tech |
98%
From NCERT
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RNA interference involves silencing of a specific mRNA due to a complementary:
| 1. | dsRNA molecule | 2. | ssRNA molecule |
| 3. | dsDNA molecule | 4. | ssDNA molecule |
Subtopic: Interference RNA Tech |
85%
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Mobile genetic elements:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | are called as transposons. |
| II: | can be a source for complementary dsRNA molecule involved in RNAi in eukaryotic cells. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Interference RNA Tech |
91%
From NCERT
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What was used to introduce Meloidogyne incognita-specific genes into the tobacco plant for silencing the specific mRNA of the nematode?
| 1. | Gene gun | 2. | Microinjection |
| 3. | Agrobacterium | 4. | Liposome |
Subtopic: Interference RNA Tech |
91%
From NCERT
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The first recombinant therapeutic product approved for human use was:
1. Flavr Savr
2. EPO
3. Human Growth Hormone
4. Human Insulin
1. Flavr Savr
2. EPO
3. Human Growth Hormone
4. Human Insulin
Subtopic: Med Applications & Humulin |
95%
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Which peptide, present in the pro-insulin, is absent from the final structure of insulin?
1. The A peptide
2. The B peptide
3. The C peptide
4. The A and C peptides
1. The A peptide
2. The B peptide
3. The C peptide
4. The A and C peptides
Subtopic: Med Applications & Humulin |
97%
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Eli Lilly prepared two DNA sequences corresponding to A and B chains of human insulin and introduced them in:
| 1. | plasmids of E. coli to produce insulin chains. |
| 2. | pBR322 plasmids to produce insulin chains. |
| 3. | pUC101 plasmids to produce insulin chains. |
| 4. | Ti plasmids of Agrobacterium to produce insulin chains. |
Subtopic: Med Applications & Humulin |
91%
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