Based on your understanding of sea urchin and fruit fly gastrulation, would you expect the ventral furrowing of the fruit fly to require an epithelial-to-mesenchymal transition? Why or why not?
Please answer it in your own words.
Yes, the ventral furrowing requires epithelial to mesenchymal transition.
This is because :
Thus the epithelial to mesenchymal transition helps in the ventral furrowing of the fruitfly while gastrulation.
Also, the ectodermal cells on the surface and the mesoderm undergo convergence and extension, migrating towards the ventral midline to form the germ band, which wraps around the dorsal surface of the embryo and later on helps in the formation of body segments.
Based on your understanding of sea urchin and fruit fly gastrulation, would you expect the ventral...
Question 4 Topic: Gastrulation in sea urchin (8 points) a) Choose one of the cell behaviors listed below and explain how it contributes to the process of gastrulation in sea urchins. In your answer be sure to describe how this cell behavior happens and the specific step in gastrulation where this cell behavior takes place. Some of these behaviors work in more than one step, you only need to explain its role in one. epithelial to mesenchymal transition apical constriction...
The average fruit fly will lay 382 eggs into rotting fruit. A biologist wants to see if the average will be fewer for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 387, 362, 370, 388, 361, 387, 370, 350, 378, 356, 366, 360 What can be concluded at the...
Would you expect to see an increase or decrease in total protein concentration in haemorrhage? Explain your reasoning PLEASE answer the question with YOUR OWN WORDS if you are going to copy it from somewhere els, don't answer it please
6. In Cross 1, a yellow eyed, long wing fruit fly from a pure breeding strain is mated to a red eye, short wing fruit fly from a pure breeding strain. All of their offspring (F1) had red eyes and long wings. In Cross 2, one of the F1 offspring is mated to a fly with yellow eyes and short wings, and this cross gave the following F2 population: 194 flies with long wings and red eyes, 796 flies with...
How you would you put to test August Weismann’s “Theory of Nuclear Determination” using the sea urchin as experimental system. Your answer must include: a brief summary of Weismann’s theory; the predictions that you derive from such theory in regards to your experiment; and whether you consider the predictions stated are likely to be met if you were to carry out the experiment.
The average fruit fly will lay 391 eggs into rotting fruit. A biologist wants to see if the average will be fewer for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 394, 390, 409, 405, 385, 359, 359, 391, 380, 407, 378 What can be concluded at the the...
3. Based on your knowledge of melting points, would you expect the melting points of the compounds isolated in this experiment to be generally higher, lower, or the same as the literature values? Explain your answer.
Now that you have an understanding of monetary and fiscal policy, in your own words explain why you would agree or disagree with the following statement: The government should not interfere if the economy is going into a recession; monetary and fiscal policy only create larger governments. You must show in your answer that you have read the chapters and speak specifically to the issues that arise per the Author on trade offs when using both policies as well as...
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POST-LAB QUESTIONS 1. Based on the results of the three tests, how do you kno the fruit was DNA and not protein? Explain. 2. What happened to the egg white sample, containing mostly protein, when you heated it or oered the pH? Explain what you saw and what you think was happening at the molecular level. 3. Why does the DNA double helix unravel when exposed to high temperatures or acidic conditions? If you tried to run this experiment with...