Understanding Viruses

The video explores the fascinating world of viruses, discussing their structure, how they blur the line between life and inanimate objects, and their interaction with host cells. It delves into the mechanisms of viral replication, including the role of retroviruses like HIV in altering genetic material. The concept of horizontal gene transfer is introduced, highlighting how viruses can move genetic material across species, impacting genetic variation.

What is the primary structural component of a virus?

• Protein capsid

• Cell wall

• Lipid bilayer

• Mitochondria

How do viruses typically enter host cells?

• Via active transport

• Through osmosis

• Through photosynthesis

• By fusing with the cell membrane

What process do viruses use to replicate inside host cells?

• Photosynthesis

• Fermentation

• Cell division

• Hijacking the host's cellular machinery

What is one way viruses can exit a host cell?

• Through budding

• By osmosis

• Via diffusion

• Through photosynthesis

What is a retrovirus?

• A virus that only affects bacteria

• A virus that only affects plants

• A virus that uses RNA to create DNA

• A virus that cannot replicate

What is the term for viral DNA that integrates into the host's genome?

• Provirus

• Antivirus

• Exovirus

• Endovirus

What percentage of the human genome is estimated to be derived from viruses?

• 20-25%

• 10-15%

• 5-8%

• 1-2%

What is horizontal gene transfer?

• Transfer of genes through photosynthesis

• Transfer of genes from parent to offspring

• Transfer of genes within the same cell

• Transfer of genes between different species

What is the philosophical question raised about viruses?

• Can viruses evolve into humans?

• Do viruses have consciousness?

• Are viruses considered living organisms?

• Are viruses a form of intelligent life?

What is the term for viruses that attack bacteria?

• Exoviruses

• Retroviruses

• Bacteriophages

• Endoviruses