the entire embryo becomes ectodermal ing the nucleu s, the vegetal cell fates ar
ID: 194145 • Letter: T
Question
the entire embryo becomes ectodermal ing the nucleu s, the vegetal cell fates are not specified and a. True b. False 22. Which of the following is incorrectly paired? a. Differentiation - Process of cell specification b. Cadherins - Calcium-dependent adhesion molecules. Transmembrane protein that interact with other cadherins on adjacent cells: intercellular connection Cadherins- Catenin Integrins - B Catenin c. d. 23. Name the four major families or super-families of paracrine factors. a. b, c. d, The FGF family, the Jak-STAT family, the Wnt family, the TGF- superfamily The FGF family, the Hedgehog family, the SMAD family, the TGF- superfamily The FGF family, the Jak-STAT, the Wnt family, the Hedgehog family The FGF family, the Hedgehog family, the Wnt family, the TGF- superfamily 24. A signal transduction pathway is a series of steps by which a signal on a cell's surface is converted into a specific cellular response. a. True b. False 25. Put the following events in the proper order of occurrence when RTK pathway of signal transduction is activated I. Signal transduction cascade 2. Autophosphorylation 3. Receptors dimerization 4. Gene expression 5. Ligand binding a. 2, 1, 3, 4, 5 b. 5, 3, 2, 1, 4 c. 5, 2, 3, 1, 4 d. 3, 5, 2, 4, I nins oadherins Catenin and actin rings. They areExplanation / Answer
Answer for question number 21 : The given statement regarding beta catenin is TRUE. The experiments conducted in the Sea urchins proved that nulcear localisation of beta catenin is very important as it determines the formation of mesodermal and endodermal cell fates. its absence in nucleus results in only ectodermal embryo.
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