When was Columbinia elegans created?

1. When was C. elegans discovered?
2. Can C. elegans survive in space?
3. What major discoveries were made in C. elegans?
4. What is Evo Devo research?
5. Can you see C. elegans with the naked eye?
6. Did NASA know about Columbia damage?
7. What survived the Columbia disaster?
8. Is C elegans an earthworm?
9. Are C. elegans roundworms?
10. Do C. elegans evolve?
11. How much DNA do we share with C. elegans?
12. What are the two genders of C. elegans?
13. Can you see C. elegans without a microscope?

When was C. elegans discovered?

The nematode worm Caenorhabditis elegans was first studied in the laboratory by Victor Nigon and Ellsworth Dougherty in the 1940s, but came to prominence after being adopted by Sydney Brenner in 1963 as a model organism for the study of developmental biology using genetics.

Can C. elegans survive in space?

During the massive recovery effort, hardware that contained our experiment was found. Live animals were observed in four of the five recovered canisters, which had survived on both types of media. These data demonstrate that CeMM is capable of supporting C. elegans during spaceflight.

What major discoveries were made in C. elegans?

Seminal discoveries about programmed cell death were made using C. elegans as a model system and earned Brenner, Sulston and Robert Horvitz the Nobel Prize in Physiology or Medicine in 2002. Another major discovery made using C. elegans was that of RNA interference, gene silencing by double-stranded RNA.

What is Evo Devo research?

Evolutionary developmental biology (informally, evo-devo) is a field of biological research that compares the developmental processes of different organisms to infer the ancestral relationships between them and how developmental processes evolved.

Can you see C. elegans with the naked eye?

Caenorhabditis elegans is a free-living (non-parasitic) worm approximately 1 mm long. They are visible to the naked eye but we use microscopes to visualize them better—both the embryo and adult are transparent.

Did NASA know about Columbia damage?

Wayne Hale, who later became space shuttle program manager, struggled with this question after the deaths of the Columbia crew 10 years ago. ... The dilemma for mission managers is that they simply didn't know if the space shuttle was damaged. The doomed astronauts were not told of the risk.

What survived the Columbia disaster?

Various salvageable experiments were recovered from the wreckage, including a live group of 1 millimeter-long roundworms, or nematodes, known as Caenorhabditis elegans. ... Once that compartment ruptured, however, the nematodes still survived the crash to Earth thanks to the locker's build, Szewczyk said.

Is C elegans an earthworm?

AN INTRODUCTION FOR THOSE UNFAMILIAR WITH “THE WORM”. C. elegans is a nematode—a member of the phylum Nematoda: ... The roundworms and threadworms, a phylum of smooth-skinned, unsegmented worms with a long cylindrical body shape tapered at the ends; includes free-living and parasitic forms both aquatic and terrestrial.

Are C. elegans roundworms?

elegans is a microscopic roundworm. Although some roundworms are parasitic, C. elegans is free-living.

Do C. elegans evolve?

C. elegans has evolved selfing from an ancestor that reproduced through females and males (see Box 2). Male-specific genes are overall conserved yet appear to be subject to relaxed selection (Cutter, 2008; Thomas et al., 2012).

How much DNA do we share with C. elegans?

The homology between human CGI genes and C. elegans genes is approximately 41% (20% to 71% in range) and similarity is even more striking at 59% (34% to 87%), as shown in Fig.

What are the two genders of C. elegans?

C. elegans has two natural sexes, XO males and XX hermaphrodites. The hermaphrodites are simply self-fertile females whose only male character is the ability to make the limited number of sperm used solely for internal self-fertilization.

Can you see C. elegans without a microscope?

Visible light can be used to examine C. elegans, however, in general, bright field and phase-contrast microscopy offers little contrast- making cells and their major components difficult to see. ... elegans cells (Sulston and Horvitz, 1977; Sulston et al., 1983).