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

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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

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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

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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

Edit