Question 1

Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong to?

Accepted Answer

(D) None of the above

Answer

B) Protista

Answer

(A) Monera

Answer

(C)Fungi

Question 2

_________as recognized virus the causal organism of the Tobacco Mosaic Disease.

Accepted Answer

(A) Dmitri Ivanovsky

Answer

(D) T. O. Diener

Answer

(C) W. M. Stanley

Answer

(B) M. W. Beijerinck

Question 3

Contagium vivum fluidum was proposed by

Accepted Answer

(B) M.W. Beijerinck

Answer

(C) Stanley

Answer

(A) D.J. Ivanovsky

Answer

(D) Robert Hook

Question 4

In the Bacteriophage the arrangement of its parts (Top to bottom) are as follows:I. Head containing DNA II.Sheath III. Collar IV. Tail fibres V. Base plate. The correct sequence is:

Accepted Answer

(D) I, III, II, V, IV

Answer

(C)I, II, IV, III, V

Answer

(B) II, I, IV, V, III

Answer

(A) II, IV, III, I, V

Question 5

Viruses are

Accepted Answer

A) DNA enclosed in a protein coat

Answer

(B) Prokaryotic nucleus

Answer

(C) Single chromosome

Answer

(D) Both DNA and RNA

Question 6

Read the following statements and select the correct option.

Statement I: Viruses that infect plants have double stranded RNA.

Statement II: Viruses that infect animals have either ssRNA/dsRNA or dsDNA.

Accepted Answer

(B) Statement II is true.

Answer

(D)Neither of the statements is true.

Answer

(C) Statement I and II are true.

Answer

(A) Statement I is true.

Question 7

Which one from the following statement CORRECT about viruses?

Accepted Answer

(B) They contain either DNA or RNA.

Answer

(D) They are easily killed by antibiotics.

Answer

(A) They have their own metabolic system.

Answer

(C) They are facultative parasites.

Question 8

Read the following statements and select the correct option.

Statement I: Viruses are inactive outside the cell.

Statement II: Viruses are essentially made up of proteins and nucleic acids.

Accepted Answer

(C) Both the statements are correct.

Answer

(A) Statement I is correct while Statement II is incorrect.

Answer

(B) Statement I is incorrect while Statement is correct.

Answer

D) Both the statements are incorrect

Question 9

Which one of the following characteristics is NOT shown by a virus?

Accepted Answer

(C) Active outside the host's body

Answer

D) Have genetic material

Answer

(B) They can be crystallised.

Answer

(A) They are acellular.

Question 10

Which type of nucleic acid is present in TMV?

Accepted Answer

(A) SSRNA

Answer

(C) ssDNA

Answer

(D) dsDNA

Answer

(B) dsRNA

Question 11

Which of the following shows coiled RNA strand and capsomeres?

Accepted Answer

(B) Tobacco mosaic virus

Answer

(A) Polio virus

Answer

(D) Retrovirus

Answer

(C) Measles virus

Question 12

Viroids have

Accepted Answer

(A) single stranded RNA not enclosed by protein coat.

Answer

(B) single stranded DNA enclosed by protein coat.

Answer

(D)double stranded RNA not enclosed by protein coat.

Answer

(C)double stranded DNA enclosed by protein coat.

Question 13

Viroid was discovered and named by

Accepted Answer

(A) Theodor Diener

Answer

(D) Theophrastus

Answer

(C) Linnacus

Answer

(B) Theodor Schwann

Question 14

Potato spindle tuber disease is caused by

Accepted Answer

(D) viroids

Answer

(C) plant virus

Answer

(B)bacteria

Answer

(A) virus

Question 15

Difference between virus and viroid is

Accepted Answer

(A) Absence of protein coat in viroid but present in virus.

Answer

(D) None of the above

Answer

(C) Both (A) and (B)

Answer

(B) Presence of low molecular weight RNA in virus but absent in viroid.

Question 16

Viroids differ from viruses in having

Accepted Answer

(D) RNA molecules without protein coat

Answer

(A)DNA molecules with protein coat

Answer

(B) DNA molecules without protein coat

Answer

(C) RNA molecules with protein coat

Question 17

Which of the following statements is WRONG for viroids?

Accepted Answer

(B) Their RNA is of high molecular weight.

Answer

(C) They lack a protein coat.

Answer

(A) They cause infections.

Answer

(D) They are smaller than viruses.

Question 18

Which of the following is CORRECT about viroids?

Accepted Answer

(A) They have free RNA without protein coat.

Answer

(D) They have RNA with protein coat.

Answer

(B) They have DNA with protein coat.

Answer

(C) They have free DNA without protein coat.

Question 19

Association between mycobiont and phycobiont are found in

Accepted Answer

(C)Lichens

Answer

(A) Mycorrhiza

Answer

(D)BGA

Answer

(B)Root

Question 20

The algal component of lichen is known as

Accepted Answer

(A) phycobiont

Answer

(C)mycobiont

Answer

(D)both (A) and (C)

Answer

(B) lichobiont

Question 21

Lichens are well known combination of an algae and a fungus where fungus has

Accepted Answer

(D) a symbiotic relationship with the algae

Answer

(A) a saprophytic relationship with the algae

Answer

(C) a parasitic relationship with the algae

Answer

(B) an epiphytic relationship with the algae

Question 22

Which of the following group of protozoa. includes parasitic protozoan 'Plasmodium"?

Accepted Answer

(C) Sporozoans

Answer

(A)Ciliates

Answer

(B) Flagellates

Answer

(D)Amoeboids

Question 23

Which of the following organisms has cell wall made up of cellulose?

Accepted Answer

(C) Mangifera indica

Answer

(A) Panthera leo

Answer

(D)Euglena

Answer

(B) Bacteriophage

Question 24

Which of the following sentences is TRUE about deuteromycetes?

Accepted Answer

(D) They include organisms like Alternaria and Colletotrichum.

Answer

(A) Their sexual as well as asexual stages are known.

Answer

(B) They reproduce sexually by conidia.

Answer

(C) Their mycelium is aseptate and unbranched.

Question 25

The protein coat of viruses is and it is made up of small subunits called as capsid

Accepted Answer

(B) capsomeres

Answer

(C) prions

Answer

(D) viroids

Answer

(A) phages

Question 26

Read the following statements and option for the appropriate conclusion.

Statement I: Puccinia is known as rust fungi.

Statement II: Puccinia belongs to group basidiomycetes.

Conclusion:

Accepted Answer

(C) Both the statements are true.

Answer

(D) Neither of the statements is true.

Answer

(A) Only Statement I is true.

Answer

(B) Only Statement II is true.

Question 27

The genetic material in Tobacco Mosaic Virus is

Accepted Answer

(B) RNA

Answer

(C) DNA and RNA

Answer

(D) DNA or RNA

Answer

(A) DNA

Question 28

Pick out the ODD one out with respect to members of group phycomycetes.

Accepted Answer

(D) Agaricus

Answer

(A) Albugo

Answer

(B) Rhizopus

Answer

(C) Mucor

Question 29

According to five kingdom classification, which kingdom can accommodate Gonyaulax?

Accepted Answer

(B) Protista

Answer

(C) Monera

Answer

(D) Plantae

Answer

(A) Fungi

Question 30

A location with luxuriant growth of lichens on the trees indicates that the

Accepted Answer

location is not polluted

Answer

trees are heavily infested

Answer

location is highly polluted

Answer

trees are very healthy

Question 31

Find out the INCORRECT statement from the following.

i.Mycoplasma completely lack cell wall.

ii.Dinoflagellates belong to Kingdom Monera.

Iii In Euglenoids, cell wall is made up of cellulose whichhelps in formation of

diatomaceous earth.

iv.In Phycomycetes, asexual reproduction occurs byaplanospores and zoospores.

Accepted Answer

(D)ii and iii

Answer

(C) i ,ii and iii

Answer

(A) only iii

Answer

(B) i and iii

Question 32

Which of the following includes organisms that are capable of producing biogas?

Accepted Answer

(A) Archaebacteria

Answer

(C)Blue-greenalgae

Answer

(D)Mycoplasma

Answer

(B)Eubacteria

Question 33

Which amongst the following is a source of antibiotics?

Accepted Answer

(B)Penicillium

Answer

(C) Trypanosoma

Answer

(A)Puccinia

Answer

(D) Mucor

Question 34

Which amongst the following is a bacterial diseases?

Accepted Answer

(B)Tetanus

Answer

(A) Measles

Answer

(D) Small pox

Answer

(C) Rabies

Question 35

Which of the following options show characters of Mycoplasma

Accepted Answer

(C)Smallest living cell without cell wall. survive without oxygen.

Answer

(A) Largest living cell without cell wall, survive with oxygen.

Answer

(D) Largest living cell with cell wall, survive without oxygen.

Answer

(B) Smallest living cell with cell wall, survive with oxygen.

Question 36

Cr-Jakob Disease in humans is caused by

Accepted Answer

prions

Answer

viroids

Answer

bacteria

Answer

fungi

Question 37

A location with luxuriant growth of lichens on the trees indicates that the [AIPMT 2014]

Accepted Answer

D) location is not polluted

Answer

A) trees are very healthy

Answer

(B) trees are heavily infested

Answer

(C) location is highly polluted

Question 38

Which of the following are most suitable indicators of SO2 pollution in the environment?

Accepted Answer

(B) Lichens

Answer

(C) Conifers

Answer

(A) Fungi

Answer

(D) Algae

Question 39

Which of the following statements is CORRECT?

Accepted Answer

(B) Lichens do not grow in polluted areas.

Answer

(A) Lichens are not good pollution indicators.

Answer

(C) Algal component of lichens is called mycobiont.

Answer

(D) Fungal component of lichens is called phycobiont.

Question 40

Pick up the WRONG statement.

Accepted Answer

A) Nuclear membrane is present in Monera.

Answer

(C) Protista have photosynthetic

Answer

(B) Cell wall is absent in Animalia.

Answer

(D) heterotrophic modes of nutrition. Some fungi are edible.

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