Which of the following is $NOT$ a mode of transmission for $AIDS$?

Which disease is caused by the microorganism shown in the given figure?
$(2)$ What does the part labeled $(A)$ in the given figure represent?

In $AIDS$,the number of which type of $T$-lymphocytes decreases?

How many of the following statements regarding the transmission of $AIDS$ are correct?
$(a)$ $AIDS$ is transmitted by using the belongings of an infected person.
$(b)$ It can be transmitted through organ transplantation.
$(c)$ It can be transmitted through blood donation.
$(d)$ It can be transmitted from mother to child through the placenta.
$(e)$ It spreads through droplet infection via sneezing and coughing.
$(f)$ It is transmitted from a breastfeeding mother to her child.
$(g)$ It can be transmitted through the saliva of a patient.

Which enzyme helps in the replication of viral $RNA$ genome into viral $DNA$ within macrophages?

The $AIDS$ virus consists of a protein coat and genetic material as ........