Put the steps of HIV cellular infection and replication in the correct order: - The T helper cell is killed.
- New HIV virion is assembled.
- New HIV buds off the T helper cell getting it's envelope while the Protease enzyme matures the new virus.
- The Integrase enzyme integrates the viral genome with the T helper cell's genome.
- Uncoating of the capsid.
- Reverse Transcriptase turns the ssRNA genome into ds DNA.
- Merging of viral envelope with the T helper cell membrane.
- The T helper cell copies the HIV genome and makes HIV proteins.
- Attachment of the gp proteins in the HIV envelope to CD4 on the T helper cell.

HIV binds to receptors on the surface of a CD4 cell

The HIV envelope and the CD4 cell membrane fuse, which allows HIV to enter the CD4 cell

Inside the CD4 cell, HIV releases and uses reverse transcriptase to convert its genetic material into HIV DNA. The Conversion of HIV RNA to HIV DNA allows HIV to enter the CD4 cell nucleus and combine with the cell's genetic material

Inside the CD4 cell nucleus, HIV releases intergrade. HIV uses intergrade to insert its viral DNA into the DNA of the CD4 cell.

Once integrated into the CD4 cell DNa. HIV begins to use the machinery of the CD4 cell to make long chains of HIV proteins

New HIV proteins and HIV RNA move to the surface of the cell and assemble into immature HIV.

Newly formed immature HIV pushes itself of the host CD4 cell. The new HIV releases protease virus.

Explanation:

reflection is the bouncing back of a propagating wave when it encounters a barrier; usually shows an image of the source of light wave

1) bounces back from an opaque material

2) bounces back from the boundary

3) seen in mirrors

refraction is the bending of a propagating wave having a shift of direction as it passes through different media; usually seen in lenses to magnify or lessen

1) passes through a prism

2) moves from one medium to another

3) seen in lenses