Viruses Viroids Prions And Lichens

Step 1: Understanding lichen structure.
Lichens are a mutualistic symbiotic relationship between fungi and photosynthetic organisms (usually algae or cyanobacteria).
The fungal part is called the "mycobiont," and the photosynthetic partner is called the "phycobiont."
Step 2: Identifying other terms.
Phycobiont: This refers to the photosynthetic partner in a lichen, not the fungal part.
Mycoparasite: A mycoparasite is a fungus that parasitizes another fungus, not part of lichen.
None of these: This is incorrect, as "mycobiont" is the correct term.
Thus, the correct answer is (B) Mycobiont.

Step 1: Identify the virus type.
Influenza is caused by the influenza virus, which is an RNA virus.
Viruses can either have DNA or RNA as their genetic material.
Step 2: Review of influenza's genetic material.
Influenza specifically contains single-stranded RNA (ssRNA) as its genetic material.
This single-stranded RNA is used by the virus for replication and to produce new viral proteins.
Step 3: Rule out other options.
Double stranded DNA: This is characteristic of many other viruses, but not influenza.
Single stranded DNA: Influenza does not have DNA, it has RNA.
Double stranded RNA: Some viruses have double-stranded RNA, but influenza has single-stranded RNA.

Thus, the correct answer is (C) Single stranded RNA.