Q.

Select the features true for mycoplasma :
(a) Are highly pleomorphic.
(b) Resistant or non-sensitive to Penicillin.
(c) Has single-stranded circular DNA.
(d) Cannot survive in the presence of oxygen.

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a

(b) and (c)  

b

(a) and (b)  

c

(c) and (d)
 

d

(a) and (d) 

answer is A.

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Detailed Solution

Mycoplasma are unicellular without cell wall hence they are not affective to penicillin and lysozyme. Nuclear membrane and nucleolus are absent. DNA is folded and double stranded.

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