Which of the following is not related to chromosomal aberration?

What does the $HIV$ virus in a retrovirus contain as its genetic material?

$AIDS$ Day is observed on:

How many of the following factors are responsible for the spread of $AIDS$?
$I -$ Sexual contact with an infected person
$II -$ Wearing clothes of an infected person
$III -$ Transmission from infected mother to the foetus through the placenta
$IV -$ Shaking hands with an infected person
$V -$ Use of contaminated blood and blood products
$VI -$ Use of contaminated needles or syringes by drug addicts

The first case of $AIDS$ was reported in the year .........

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