Examine the figure below. What would be the effect on
transcription if a mutation occurred in the gene that encodes GAL3,
so that no functional GAL3 was produced?
Homework Answers
Galactose binds to GAL3 protein. Then GAL3 is found in activated form. It will interact with GAL80 and there are not found interaction of GAL 80 with the DNA. Hence the transcription will not occur.
-------
Answer)
When GAL3 protein is non functional in nature, then GAL3 protein can not bind to the galactose. Hence GAL 3 can not bind to the GAL80 protein. GAL80 protein remains bind with the DNA. Hence it will repress the transcription process. Because GAL 4 can not bind to the promoter.
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Examine the figure below. What would be the effect on
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Describe how the expression of this gene is regulated. Include
the roles of all key players (GAL3, GAL4, GAL80, Gene promoter, RNA
polymerase, and transcription factors) illustrated.
Understanding regulation of transcription in eukaryotes. The images below depict how the expression of a gene required to break down lactose in yeast is regulated. The top image illustrates the key regulators of the process. The bottom two panels illustrate what happens in the presence and absence of galactose. Describe how the expression...
What would happen to the expression of this gene if this cell
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(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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