Life Cycle Of Viruses Flashcards
What is the first step in the lytic pathway of virus replication?
Virus enters host cell and hijacks its machinery to replicate viral DNA.
The lytic pathway results in the destruction of the host cell.
What occurs after the viral DNA is replicated in the lytic pathway?
Newly created virus particles are assembled.
This assembly prepares the virus for release from the host cell.
What happens to the host cell during the lytic pathway?
Host cell bursts (lysis), releasing viruses to infect nearby cells.
This process allows for the rapid spread of the virus.
What is the first step in the lysogenic pathway of virus replication?
Viral DNA integrates into the host cell’s genome.
This integration allows the virus to remain dormant within the host.
What happens when the host cell divides in the lysogenic pathway?
Host cell divides, copying viral DNA along with its own.
This results in the viral DNA being passed to daughter cells.
What triggers the lytic cycle in the lysogenic pathway?
Lytic cycle is triggered, producing new virus particles.
This can occur due to environmental stress or other factors affecting the host cell.
How are sexually transmitted infections (STIs) primarily spread?
Sexual contact involving exchange of bodily fluids (e.g., semen, vaginal fluids).
This highlights the importance of safe sexual practices.
What are some symptoms of Chlamydia?
Painful urination, pelvic pain, infertility if untreated.
Chlamydia is a bacterial infection that can have serious long-term effects.
What is a consequence of HIV infection?
Weakens the immune system, making the body vulnerable to infections and diseases.
HIV can lead to AIDS if not treated effectively.
Name one method of preventing STIs.
Barrier methods like condoms.
Condoms are effective in reducing the risk of transmission of many STIs.
Fill in the blank: Abstinence or reducing the number of sexual partners can help in _______ STIs.
preventing
This is a key strategy for STI prevention.
