Retrovirus genome replication. Computer artwork showing the replication and expression of retroviral RNA (ribonucleic acid). Once released from the virus particle the RNA (red line at right) is transcribed into double stranded DNA (deoxyribonucleic acid, brown lines) by reverse transcriptase. The DNA is then able to integrate into the host cell chromosome (circle), where it hijacks the cell's nuclear machinery, causing it to produce viral RNA molecules (red squiggly lines) and proteins (green and white).
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