$A$: Newer antibiotics are required to be produced regularly.
$R$: Pathogens often develop resistance to existing antibiotics.

  • A
    Assertion and Reason both are correct and Reason is the correct explanation of Assertion.
  • B
    Assertion and Reason both are correct but Reason is not the correct explanation of Assertion.
  • C
    Assertion is correct,but Reason is incorrect.
  • D
    Both Assertion and Reason are incorrect.

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Match the disease in column $I$ with the appropriate items (pathogen/prevention/treatment) in column $II$.
Column-$I$ Column-$II$
$(A)$ Amoebiasis $(i)$ Treponema pallidum
$(B)$ Diphtheria $(ii)$ Use only sterilized food and water
$(C)$ Cholera $(iii)$ $DPT$ Vaccine
$(D)$ Syphilis $(iv)$ Use oral rehydration therapy

Identify the plant part shown in the figure.

Drugs such as $Thalidomide$ taken by women in the first trimester of pregnancy cause all the following malformations in the developing embryo,except:

Which one of the following options gives the correct match of a disease with its causative organism and mode of infection?

Which of the following infection$(s)$ can be diagnosed by the use of polymerase chain reaction $(PCR)$?

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