icq7 - c) vegetal side d) animal side e) still uniform What...

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class questions Class 7 In class questions Class 7
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Cortical rotation re organizes cytoplasmic components What kind of mponent is component is Disheveled? a. Maternally ntributed contributed (transcribed in mother, deposited in oocyte) b. Embryonically contributed (transcribed in embryo)
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How does the Wnt pathway get activated as a consequence of fertilization? izzled receptor on the egg surface is activated by a. Frizzled receptor on the egg surface is activated by sperm entry b. A Wnt ligand stimulates the activation of Disheveled c. Disheveled is activated by cortical rotation, not by a ligand
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At fertilization, the kinase GSK3 is distributed uniformly throughout the egg cytoplasm. Just before first cleavage, here do you expect the concentration of the activated where do you expect the concentration of the activated kinase GSK3 to be lowest? On the a) ventral side b) dorsal side vegetal side
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Unformatted text preview: c) vegetal side d) animal side e) still uniform What will happen to the dorsal /ventral patterning of the Xenopus embryo under the following conditions? a. GSK 3 is over expressed throughout the embryo no dorsal side can form b. The Dsh protein is prevented om being made in the ocyte from being made in the oocyte by antisense injections to Dsh mRNA (like RNAi) no dorsal side can form c. Vg1 is distributed uniformly the ocyte in the oocyte Potentially larger dorsal side, or twinned dorsal sides What is happening? a. Transplant cells are becoming Dorsal Ventral all of the second dorsal axis b. Transplant is inducing host cells to make part of the second dorsal axis c. Host cells are inducing transplanted cells to make cond dorsal axis second dorsal axis. 10.19 Cells from transplant: red Host cells: yellow...
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This note was uploaded on 02/25/2010 for the course MCDB 4650 taught by Professor Staff during the Spring '08 term at Colorado.

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icq7 - c) vegetal side d) animal side e) still uniform What...

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