NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Biology: Questions 1449 - 1452 of 4199
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Question 1449
Appeared in Year: 2004
Question MCQ▾
The Ti plasmid, is often used for making transgenic plants. This plasmid is found in (AIPMT)
Choices
Choice (4) | Response | |
---|---|---|
a. | Yeast as a 2 pm plasmid | |
b. | Rhizobium of the roots of leguminous plants | |
c. | Azotobacter | |
d. | Agrobacterium |
Question 1450
Appeared in Year: 2009
Question MCQ▾
What is true about Bt toxin (AIPMT)
Choices
Choice (4) | Response | |
---|---|---|
a. | The inactive protoxin gets converted into active form in the insect gut | |
b. | The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication | |
c. | The concerned Bacillus has antitoxins | |
d. | Bt protein exists as active toxin in the Bacillus |
Question 1451
Appeared in Year: 2009
Question MCQ▾
Which one of the following is commonly used in transfer of foreign DNA into crop plants? (AIPMT)
Choices
Choice (4) | Response | |
---|---|---|
a. | Agrobacterium tumefaciens | |
b. | Meloidogyme incognita | |
c. | Penicillium expansum | |
d. | Trichoderma harrianum |
Question 1452
Question MCQ▾
There exists a close association between the alga and the fungus within lichen. The fungus:
Choices
Choice (4) | Response | |
---|---|---|
a. | Provides food for the alga | |
b. | Provides protection, anchorage and absorption for the alga | |
c. | Releases oxygen for the alga | |
d. | Fixes the atmospheric nitrogen for the alga |