What primarily distinguishes parabasalids from diplomonads?
Understand the Problem
The question is asking to identify the main differences between two types of protozoans: parabasalids and diplomonads. It lists several options that could distinguish them, and we need to determine the most significant distinguishing factor.
Answer
Parabasalids have one nucleus and hydrogenosomes; diplomonads have two nuclei and mitosomes.
Parabasalids are distinguished from diplomonads by having one nucleus and semi-functional mitochondria-like organelles called hydrogenosomes, in contrast to the two haploid nuclei and non-functional mitosomes found in diplomonads.
Answer for screen readers
Parabasalids are distinguished from diplomonads by having one nucleus and semi-functional mitochondria-like organelles called hydrogenosomes, in contrast to the two haploid nuclei and non-functional mitosomes found in diplomonads.
More Information
The differences in nucleus number and organelle types are primary distinguishing features between these two groups of protists, which are both classified under the supergroup Excavata.
Sources
- Protists: Diplomonads & Parabasalids - study.com
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