16 Questions
What is the type species of the genus Caenorhabditis?
Caenorhabditis elegans
Who proposed research into C. elegans, primarily in the area of neuronal development?
Sydney Brenner
What was C. elegans the first multicellular organism to have sequenced?
its whole genome
In what year was C. elegans the first organism to have its connectome (neuronal 'wiring diagram') completed?
2019
What is the length of the free-living species of nematode C. elegans?
about 1 mm
What are the specialized structures that males of C. elegans have for mating?
spicules
What are the basic components of the C. elegans anatomy?
mouth, pharynx, intestine, gonad, and collagenous cuticle
How does the wave of contractions in C. elegans affect its movement?
propelled backwards or forwards
Where are neutral lipids stored in C. elegans?
intestine, epidermis, and embryos
What is the main function of the pharynx in C. elegans?
muscular food pump, grinds food, transports it directly to the intestine
How are the contents of the intestine released in C. elegans?
via the rectum
What are the reproductive structures present in male C. elegans?
single-lobed gonad, vas deferens, tail specialized for mating
What are the reproductive structures present in hermaphrodite C. elegans?
two ovaries, oviducts, spermatheca, single uterus
How many neurons are present in C. elegans?
302 neurons
What are the functions of neurons in C. elegans?
receive neurotransmitters, synaptic connection between neurons
What are the motor excitatory and inhibitory neurons in C. elegans known as?
cholinergic and gabaergic neurons
Test your knowledge about the free-living transparent nematode species Caenorhabditis elegans, which is about 1 mm in length and inhabits temperate soil environments. Explore its taxonomy, history, and unique characteristics.
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