ৰেজিষ্টাৰৰেডিঅ
ৰেট্ৰ’ভাইৰাছ (Assamese)
1. A retrovirus is a type of virus that inserts a DNA copy of its RNA genome into the DNA of a host cell that it invades, thus changing the genome of that cell. After invading a host cell's cytoplasm, the... from wikipedia.org