Diversity in Living World-Five Kingdom Classification [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Biology]: Questions 239 - 245 of 986

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Question 239

Question MCQ▾

Tungro disease of rice is caused by

Choices

Choice (4)Response

a.

Prions

b.

Viroid

c.

Virus

d.

Mycoplasma

Edit

Question 240

Question MCQ▾

Ganga water does not undergo decay due to the presence of:-

Choices

Choice (4)Response

a.

Phages

b.

Antibiotics

c.

Algae

d.

Minerals

Edit

Question 241

Question MCQ▾

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

Choices

Choice (4)Response

a.

Stanley

b.

Ivanowsky

c.

Adolf Mayer

d.

Beijerinck

Edit

Question 242

Question MCQ▾

Double stranded DNA plant virus is:-

Choices

Choice (4)Response

a.

Alfalfa mosaic virus

b.

Turnip yellow mosaic virus

c.

Cauliflower mosaic virus

d.

Tobacco mosaic virus

Edit

Question 243

Question MCQ▾

The smallest disease causing agent is:-

Choices

Choice (4)Response

a.

Virion

b.

Viroid

c.

Prion

d.

Mycoplasma

Edit

Question 244

Question MCQ▾

T. O. Diener discovered a:-

Choices

Choice (4)Response

a.

Free infection DNA

b.

Free infectious RNA

c.

Infectious protein

d.

Bacteriophage

Edit

Question 245

Question MCQ▾

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

Edit