Question

1.

In retroviral replication (such as HIV) reverse transcriptase is used to convert viral ds RNA into

• viral ds DNA

• viral ss RNA

• viral mRNA

• viral ss DNA

2.

Many viruses undergo an uncoating process prior to replication. Which statement depicts the uncoating process?

  

• the virus destroys the host nuclear membrane allowing it access to DNA

• the virus sheds its protein coat

• the virus shed its envelope when entering the cell via the cell membrane

• the virus sheds its DNA proteins prior to viral replication

3.

A lysogenic phage is one that enters the bacterial cell

• and replicates but does not kill the host cell

• replicates and kills the bacterium via cell lyses

• and remains dormant in the cytoplasm

• and inserts its DNA into the host chromosome

Answer 1

1.In retroviral replication ( such as HIV ) reverse transriptase used to convert viral mRNA to dsDNA that can be integrated to the host cell DNA.

2. In uncoating process prior to the replication the virus sheds it protein coat which can be done by the help of the viral or hpst enzymes or simply by dissociation.

3. A lysogenic phage is one that enters the bacterial cell and replicates but does not kill the host cell.