Question

The molecular phylogenetic analysis of Phylum Nematoda (De Ley and Blaxter, 2002) reveals the presence of these major sub-classes:
(A) Chromadoria
(B) Dorylaimia
(C) Rhabdita
(D) Enoplia
Choose the correct answer from the options given below.

• A. (A), (B) and (D) only
• B. (A), (B) and (C) only
• C. (A), (B), (C) and (D) only
• D. (B), (C) and (D) only

Hint:

Molecular phylogeny by De Ley and Blaxter refined nematode taxonomy beyond morphology.

Answer 1

The Correct Option is D

Step 1: The De Ley & Blaxter (2002) scheme groups Dorylaimia, Rhabditia and Enoplia as major subclasses.
Step 2: Chromadoria is not included among these three in this classification.
Step 3: Any option pairing in Chromadoria is eliminated, leaving (B), (C), (D).
Step 4: The correct option is (B), (C) and (D) only.