Consider that you are a developmental biology researcher working on studying the development of your DEV2011 cell type (the one you have been assigned this Semester). 

1) You have a series of fixed embryonic sections to stain and image for your study - what stain and imaging technique (eg haematoxylin, eosin, immunofluorescence, light, fluorescence microscopy) would be the best to use, and why?  (3 marks)  

2. You are designing a study to model the human development of your DEV2011 cell type in a model organism. In which of the following organisms would you choose to undertake this study, and why? Choose from C. cerevisiae (yeast), C. elegans (worm), D. melanogaster (fruitfly), or G. gallus (chicken). (3 marks)

NOTE: There is a word limit of 100 words total for this answer (ie 100 words for combined answer 1 and 2). You can use dot points and keep your answer concise.  Your answer will still submit even if it is over the word limit.  

At which stage of development does syngamy occur in the human embryo?

Choose the CORRECT option below:

If a cell differentiates into a different type in response to an extracellular signal, what kind of change is most likely to have occurred in the cell?

Choose the CORRECT option:

What tissues develop as the cells of the inner cell mass delaminate to form the bilaminar embryo?

Choose the CORRECT option below:

Una expansión monetaria causa una depreciación y aumenta las exportaciones y la producción.

Una expansión fiscal estimula una revaluación y expulsa por completo las importaciones netas.

Con tipos de cambio fijos y movilidad perfecta del capital, la política monetaria no puede influir en la producción.

Si una economía con tipos flotantes sufre desempleo, el banco central puede intervenir para depreciar el tipo de cambio y elevar las exportaciones netas y por lo tanto la demanda agregada.