Question
This species has 110 genes named for its phenotype unc (“UNK”) for “uncoordinated.” For 10 points each:
[10m] Name this model organism that swims around either by “thrashing” or “crawling.” Phenotypes of this translucent nematode are often named for how they move.
ANSWER: C. elegans [or Caenorhabditis elegans; prompt on worm or roundworm]
[10h] C. elegans alternates between weathervaning—a form of chemotaxis—and pirouetting, which is this type of undirected random tumbling motion that’s not in the direction of a stimulus.
ANSWER: kinesis [or chemokinesis; or klinokinesis; reject “cytokinesis”]
[10e] The allele that causes C. elegans to roll is a useful selection marker for gene uptake since it has this property. Alleles with this property are symbolized by capital letters.
ANSWER: dominant allele [or dominance; accept autosomal dominant]
<David Bass, Science - Biology> ~22550~ <Editor: Adam Silverman>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 PACE NSC | 06/08/2024 | Y | 36 | 17.50 | 100% | 72% | 3% |