Question

Genetic material of retrovirus is
A.ss RNA
B.ss DNA
C.ds RNA
D.ds DNA

Answer 1

Hint: Retrovirus is a type of virus that can change the genome of the host cell by inserting a copy of its genome into the DNA of the host cell.

Complete answer:
The retroviruses are a group of viruses belonging to the family retroviridae and order ortervirales.
The genetic material of retrovirus is single-stranded RNA and it uses an enzyme known as reverse transcriptase enzyme to produce a new reverse DNA known as provirus from its single-stranded RNA which is then transferred to the genome of the host cell which considers the viral genome as its genome and starts transcription and translation on that viral genome along with its own genome which leads to the production of proteins which give rise to a population of new retroviruses.

Retrovirus undergo mutations at a very fast rate and are highly resistant to their inhibitors.
HIV-I and HIV-II are also human retroviruses that cause AIDS in humans.
Retrovirus also has an outer membrane made up of glycoprotein which protects it from the outer environment.

Option A: Retrovirus has single-stranded RNA in their genome Therefore, this is the correct option.

All the other options are irrelevant.

Hence, the correct answer is option (A)

Note: Retroviruses are classified into three groups
oncogenic Retroviruses also are known as the oncoretrovirus which can cause cancer.
Slow Retroviruses also known as lentivirus which can affect the immunity system of the species and can also lead to death.
Foamy viruses also known as spuma viruses do not cause any disease.