Which of the following make Caenorhabditis elegans an ideal model system? short life cycle small size available sequenced genome ability to regenerate complex structures such as limbs large size
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- Paragraf Stiller What are the genes and proteins involved in the formation anterior-posterior axes in bugs? www mw hpaterials Spirochaetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are roundworms that are incredibly diverse and, as a group, have adapted to survive in all environments. Which of the following statements accurately describes the DNA of both groups? * pdates ades embers nferences The spirochaete genome is smaller than the nematode genome. Q Online Nematode DNA is circular. sela Spirochaete chromosomes are composed of just DNA while nematode chromosomes also include specialized proteins. on Periods 1 and 2 eriods MP1, Highschool chool MP3, Spirochaete DNA is linear. MP4 Operons are clusters of genes that are regulated as a group. They can be characterized as either repressible or inducible. What is the main difference between the two? * d Thu Fri INTL 1Give specific reasons (at least 3) why Caenorhabditis elegans have been used by scientists worldwide as a model organism to study various physiological and developmental mechanisms.
- Spirochaetes are free-living, anaerobic bacteria that contain spiral-shaped cells. Nematodes are roundworms that are incredibly diverse and, as a group, have adapted to survive in all environments. Which of the following statements accurately describes the DNA of both groups? * The spirochaete genome is smaller than the nematode genome. Nematode DNA is circular. Spirochaete chromosomes are composed of just DNA while nematode chromosomes also include specialized proteins. O Spirochaete DNA is linear.It asks to use the development images below to identify one of each of the following in the photos: Zygote -Morula 2-celled stage -Blastula 8-celled stage -GastrulaWhat is a dauer larva ? It's a larva from a special variant of C. elegans that was first identified in samples from soil in Germany It is a larva that shows accelerated development in highly nutritious environments Dauer is just the technical term for "hermaphrodite" - so dauer larva means hermaphrodite adult It's a larva that arrests development in a low metabolic and enduring stage, caused by harsh environmental conditions. The larva will remain in the dauer stage until the conditions improve, at which point they'll resume development.
- What is the correct order for these stagesReset Help Requires another individual to reproduce Reproduces its own kind Takes in, converts, and expels energy Eats other organisms to gain energy Complex, but well-ordered, structure Composed of many cells Responds to the environment Populations evolve over time Individuals evolve over time A property of all living things Not a property of all living thingsGene expression does not vary by ___ . a. cell type b. extracellular conditions c. stage of development d. the genetic rode
- Life cycle complexity Describe a generalized complex life cycle for a parasite that would encompass one or more intermediates hosts and multiple larval stages. Why would this heteroxenic life cycle be an evolutionary advantage over a monoxenic one?Which of the following life stages is the parasitic stage of Unionidae mussels? Question 3 options: Adult Embryo Larva All of the life stages of Unionid mussels are parasitic None of the above - the Unionidae mussels are not parasiticIn 2005, researcher Woo-suk Hwang reported that he had made immortal stem cells from human patients. His research was hailed as a breakthrough for people affected by degenerative diseases, because stem cells may be used to repair a persons own damaged tissues. Hwang published his results in a peer-reviewed journal. In 2006, the journal retracted his paper after other scientists discovered that Hwangs group had faked their data. Does the incident show that results of scientific studies cannot be trusted? Or does it confirm the usefulness of a scientific approach, because other scientists discovered and exposed the fraud?
