Assertion $A$: For an $AIDS$ patient,it becomes impossible to protect against infections from various diseases.
Reason $R$: $HIV$ infection leads to a decrease in the number of helper $T$-lymphocytes in the body.
Which option is correct for Assertion $A$ and Reason $R$?

  • A
    $A$ and $R$ both are true and $R$ is the correct explanation of $A$.
  • B
    $A$ and $R$ both are true but $R$ is not the correct explanation of $A$.
  • C
    $A$ is true and $R$ is false.
  • D
    $A$ is false and $R$ is true.

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Similar Questions

Which of the following techniques is routinely used to detect $HIV$ in suspected $AIDS$ patients?

The full form of $AIDS$ is:

Which of the following can be considered as the factory of $HIV$?

What is the correct sequence of events that occur after $HIV$ infection in a human body?
$(I)$ Viral $DNA$ enters the host $DNA$
$(II)$ Entry into $T_H$ lymphocytes and replication
$(III)$ Viral $RNA$ is converted into viral $DNA$ by reverse transcriptase
$(IV)$ $HIV$ enters into macrophages
$(V)$ Destruction of $T_H$ lymphocytes
$(VI)$ New virus particles are produced from the host cell

The Human Immunodeficiency Virus $(HIV)$ consists of a protein coat and ............ as its genetic material.

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