More than just pets cover with iridescent scales and black stripes, zebrafish (Danio rerio) are popular in foundation aquariums. However, these little one- to twoinch fish, natives of Indias Ganges River, are also help biomedical researchers learn about how our patrol wagon develop and persistâ€"and what can make them fail.
Adult zebrafish Adult zebrafish Why seem at a fish? Since the 1990s, zebrafish have proven to be a powerful tool in trying to go through how the human body develops. In addition, its genome is being sequenced (and should be fatten up by the end of 2008), making this model organism in time more useful. Adults are relatively easy to keep in the lab, they wrick up and reproduce in about leash months, and, perhaps most importantly, they are vertebrates that lay small ballock (about 1 millimeter across) with clear shells that develop rapidly into manifest embryos. By peering at these embryos through a microscope, researchers can regard for abnormal development of vital organs such as the heart.
Zebrafish embryos are particularly well-suited to investigating the mysteries of heart disorders, because
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edu/imaging_station
Developing zebrafish embryo
Zebrafish: A Model for Heart Development
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even embryos that develop severely malformed, nonbeating hearts can survive and continue to grow for several days. Because of the embryos small size, it does not exigency a working heart. As it turns out, the cells of this model organism do not depend on the circulation of blood for type O during its graduation few days of development: They can survive with the oxygen that diffuses in from the watery surroundings for the first week of life. Luckily, this is pine enough for researchers to make crucial observations about how these defective hearts form and malfunction over time. How is your heart like that of a zebrafish? Though distantly related, human and zebrafish hearts have lots in common. Both are...If you want to get a skilful essay, order it on our website: Orderessay
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