Question

question 17 (1 point)
______ are individuals who inconspicuously shelter a pathogen and spread it to others.
vectors
sources
opportunists
carriers
question 18 (1 point)
the processes of transcription and translation differ between prokaryotes and eukaryotes in the following way:
eukaryotes transcribe dna in the cytoplasm.
eukaryotes translate dna in the nucleus.
prokaryotes transcribe and translate simultaneously.
prokaryotes transcribe dna in the nucleus.
question 19 (1 point)
dna viruses tend to replicate in the nucleus while rna viruses replicate in the
mitochondria.
ribosome.
golgi apparatus.
cytoplasm.

Explanation:

Question 17

• Vectors are organisms (like mosquitoes) that transmit pathogens.
• Sources are places where pathogens originate.
• Opportunists are pathogens that cause disease when the host's immune system is weakened.
• Carriers are individuals who shelter a pathogen without showing symptoms and can spread it.

• Eukaryotes transcribe DNA in the nucleus (not cytoplasm).
• Eukaryotes translate mRNA in the cytoplasm (not nucleus).
• Prokaryotes have no nucleus, so transcription and translation occur simultaneously in the cytoplasm.
• Prokaryotes have no true nucleus.

• DNA viruses often use the host cell's nuclear machinery for replication.
• RNA viruses (except retroviruses) replicate in the cytoplasm as they don't need the nuclear environment like DNA viruses. Mitochondria are for energy production, ribosomes for protein synthesis, and Golgi apparatus for protein modification.

Answer:

Carriers

Question 18