Diversity in Living World-Five Kingdom Classification (NEET Biology): Questions 241 - 248 of 935

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Question number: 241

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

MCQ▾

Question

The infectious nature of tobacco mosaic disease was discovered by; -

Choices

Choice (4) Response

a.

Stanley

b.

Ivanowsky

c.

Beijerinck

d.

Adolf Mayer

Question number: 242

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

MCQ▾

Question

Double stranded DNA plant virus is: -

Choices

Choice (4) Response

a.

Alfalfa mosaic virus

b.

Cauliflower mosaic virus

c.

Tobacco mosaic virus

d.

Turnip yellow mosaic virus

Question number: 243

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

MCQ▾

Question

The smallest disease causing agent is: -

Choices

Choice (4) Response

a.

Virion

b.

Prion

c.

Viroid

d.

Mycoplasma

Question number: 244

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

MCQ▾

Question

T. O. Diener discovered a: -

Choices

Choice (4) Response

a.

Infectious protein

b.

Bacteriophage

c.

Free infection DNA

d.

Free infectious RNA

Question number: 245

» Diversity in Living World » Five Kingdom Classification » Lichens

MCQ▾

Question

Lichens are ecologically important because -

Choices

Choice (4) Response

a.

They are pioneers (earliest settlers on barren rocks) and pass xeric conditions successfully

b.

They are associated with mycorrhizal roots

c.

They can grow in greatly polluted area

d.

They are association of algae and fungi

Question number: 246

» Diversity in Living World » Five Kingdom Classification » Lichens

MCQ▾

Question

Lichen is a pioneer vegetation of

Choices

Choice (4) Response

a.

Hydrosere

b.

Psammosere

c.

Lithosere

d.

Malosere

Question number: 247

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

MCQ▾

Question

Scrapie” disease of sheep is caused by: -

Choices

Choice (4) Response

a.

Virus

b.

Prion

c.

Mycoplasma

d.

Bacterium

Question number: 248

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

MCQ▾

Question

Which of the following statements is not true for retroviruses: -

Choices

Choice (4) Response

a.

DNA is not present at any stage in the life cycle of retroviruses.

b.

Retroviruses carry gene for RNA-dependent DNA polymerase

c.

Retroviruses are causative agents for certain kinds of cancer in man

d.

The genetic material in mature retroviruses is RNA

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