General Mycology Principles, Fungal Ultrastructure, Growth Requirements & Mucorales (Mucor, Rhizopus)

• Diagnostic Mycological Features of Mucor:
• Fungi belonging to the order Mucorales:
• Apophyses: Absent in Mucor (columella joins directly to sporangiophore). True.
• Sporangia: Large, spherical/round ($50 - 300\ \mu\text{m}$). True.
• Sporangiophores: Can be branched. True.
• Rhizoids and Stolons: Completely absent in Mucor. In contrast, prominent root-like rhizoids are characteristic of Rhizopus (produced directly opposite sporangiophores at nodes) and Absidia (produced internodally between sporangiophores).
• nalysis:
• Statement 1 claims rhizoids are present in Mucor, which is not true, hence the correct answer.

Matching the items of List I with List II for Systematic study of RNA and DNA viruses in livestock and poultry with reference to antigenicity:

The correct combination is Option 2: (A) - (II), (B) - (I), (C) - (IY), (D) - (ll).

Correct option: (2) (A) - (II), (B) - (I), (C) - (IY), (D) - (ll)