Biotechnology and Its Applications (NEET Biology): Questions 182 - 186 of 224

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Question number: 182

» 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: 183

» 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: 184

» 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: 185

» 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

Question number: 186

» Biotechnology and Its Applications » Genetic Engineering

Appeared in Year: 2007

MCQ▾

Question

The restriction enzyme ECORI has the property of

Choices

Choice (4) Response
a.

exonuclease activity

b.

correcting the topology of replicating DNA

c.

ligase activity

d.

endonuclease activity

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