NEET Biology: Questions 1448 - 1452 of 3146

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Question number: 1448

» Biotechnology and Its Applications » Principles and Process of Biotechnology

MCQ▾

Question

A bacterium modifies its DNA by adding methyl groups to the DNA, It does so to

Choices

Choice (4) Response
a.

Protect its DNA from its own restriction enzyme

b.

Turn its gene on

c.

Clone its DNA

d.

Be able to transcribe many genes simultaneously

Question number: 1449

» Diversity in Living World » Five Kingdom Classification » Viruses and Viriods

MCQ▾

Question

Which of the following are non cellular organisms that are characterised by having an inert crystalline structure outside the living cell?

Choices

Choice (4) Response
a.

Viruses

b.

Lichen

c.

Bacteria

d.

Mycoplasma

Question number: 1450

» Biotechnology and Its Applications » Genetically Modified Organisms

Appeared in Year: 2004

MCQ▾

Question

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.

Azotobacter

c.

Rhizobium of the roots of leguminous plants

d.

Agrobacterium

Question number: 1451

» Biotechnology and Its Applications » Application of Biotechnology in Health and Agriculture

Appeared in Year: 2009

MCQ▾

Question

What is true about Bt toxin (AIPMT)

Choices

Choice (4) Response
a.

The concerned Bacillus has antitoxins

b.

The inactive protoxin gets converted into active form in the insect gut

c.

Bt protein exists as active toxin in the Bacillus

d.

The activated toxin enters the ovaries of the pest to sterilise it and thus prevent its multiplication

Question number: 1452

» Biotechnology and Its Applications » Application of Biotechnology in Health and Agriculture

Appeared in Year: 2009

MCQ▾

Question

Which one of the following is commonly used in transfer of foreign DNA into crop plants? (AIPMT)

Choices

Choice (4) Response
a.

Meloidogyme incognita

b.

Trichoderma harrianum

c.

Agrobacterium tumefaciens

d.

Penicillium expansum

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