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Mycoplasma is...

Mycoplasma is

A

Gram positive

B

Gram negative

C

Some species are Gram positive

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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Assertion : Mycoplasmas are pathogenic in animals and plants. Reason : Mycoplasmas lack cell wall and can survive without oxygen.

Read the following statements and select the option which CORRECTLY identifies the INCORRECT ones. (i) Potato spindle tuber disease is caused by viroids . (ii) Viruses cause diseases like common cold, herpes and AIDS. (iii) Mycoplasma is prokaryotic organisms that completely lack a cell wall. (iv) In Ascomycetes, the asexual spores are conidia produced endogenously on the special mycelium called conidiophores

Knowledge Check

  • Which of. These statements about Mycoplasma is / are true ? I. Mycoplasma is the smallest cell known. II . They are not prokaryotic in nature . III. They can respire only in the presence of oxygen . IV. They lack cell walls.

    A
    I and II
    B
    I and IV
    C
    I , II and III
    D
    II and IV

  • Which of the following statements is correct- I. Mycoplasma has no cell wall II. Mycoplasma is the smallest living organism III. Mycoplasma cannot survive without O_(2) IV. Mycoplasma are pathogenic in animals and plants V. True sexuality is not found in bacteria VI. A sort of sexual reproduction by adopting a primitive DNA transfer from one bacterium to the other occurs

    A
    I,II,V
    B
    Only III
    C
    I, II, IV, V, VI
    D
    All

  • Find out the incorrect statements : (1) Blue-green alga is a prokaryotic cell. (2)WBC is amoeboid in shape. (3) Mycoplasma is the largest cell. (4) Microbodies are cell organelles. (5) Prokaryotes do not exhibit a wide variety of shapes.

    A
    2,4 and 5
    B
    2,3 and 5
    C
    3,4 and 5
    D
    3 and 5 only

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    Mycoplasmas are not sensitive to

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