Laevis - Study guides, Class notes & Summaries

Fungal disease has emerged as an increasing threat to a number of different organisms, especially amphibian species. Batrachochytrium dendrobatidis (Figure 1), a Chytridiomycota fungus that causes the infectious disease chytridiomycosis has been found to be the major cause of amphibian death caused by fungal infection. B. dendrobatidis infects the superficial, keratin-containing layers of amphibian skin.9 The infection then spreads across the skin, causing it to thicken and slough off. This thic...

What is the most common name for Ambystoma mexicanum? A. African clawed frog B. Western clawed frog C. Tiger salamander D. Axolotl D. Axolotl What is the scientific name of the leopard frog? A. Rana pipiens B. Rana catesbiana C. Xenopus laevis D. Xenopus tropicalis A. Rana pipiens 00:33 01:08 In female bullfrogs, how big is the tympanic membrane? A. About half the size of the eye B. About the same size as the eye C. About twice the size of the eye D. V...

This project is a culmination of a series of Xenopus laevis experiments that explores basic Xenopus laevis development and the results of different perturbations at different times of development. It follows the tracing of staining an embryo to create a fate map for Xenopus. Investigation of disturbances such as UV light exposure on an embryo allows one to determine the developmental effects. It will also explain how drugs can change the actions and properties of an embryo. By dissecting differe...

How is the densely packed cellular space organized to enable control over complex biochemical reactions in space and time? In cells we do have compartments, such as the largest one: ER the endoplasmic reticulum, a classic form of membrane bound organelle which is fully formed by a bilayer membrane. ER has different compartments and we infer these differences because these compartments have different shapes: - Smooth ER - Rough ER, with ribosomes. - Nucleus and ER are treated as differe...

This lab report uses wing experiments to observe manipulations on substrates expressed by Drosophila in their wings. Also, it investigates mystery mutants using visual clues from their phenotype and patterns in embryogenesis and neurulation. A wing pattern experiment analyzed the effects due to a cut in the wing vein. It was discovered that a cut on the wing vein prevents formation of pigments. Another experiment to understand pigment formation involved placing detached wings in solutions contai...