True or False C. elegans was the first animal to have its genome fully sequenced.

Question

BlackTom AI · Accepted Answer

In this true/false item, we evaluate two possible statements about C. elegans and genome sequencing.
Option 1: "True". This claims that C. elegans was the first animal to have its genome fully sequenced. Historically, C. elegans was the first multicellular organism whose genome was completely sequenced and published, marking a milestone in genomics for animals. The achievement demonstrated that a simple multicellular model organism could be fully mapped at the DNA level, which is a key concept in genomics and model-organism research.
Option 2: "False". If this were correct, it would imply that some other animal was sequenced before C. elegans. However, the widely accepted historical record shows that no other animal genome was completed before C. elegans, whereas many non-animal genomes, such as microbial or yeast genomes, were sequenced earlier, these do not count as animals and therefore do not contradict the claim about the first animal. Choosing this would reflect a misunderstanding about the order of milestones in genome projects and the distinction between animal versus non-animal organisms.
Additional nuances: The wording targets the chronology of animal genome sequencing specifically, not the sequencing of all organisms. Remember that model organisms like C. elegans served as a proof of concept for whole-genome sequencing in animals, which contextualizes why this statement is regarded as true in most textbooks and summaries of genome history.

True or False C. elegans was the first animal to have its genome fully sequenced.

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