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A netlike membranous complex of superposed flat saccules with vesicles detaching from the extremities seen in electronic microscopy. What is the observed structure? What is its biological function?
What are the main structures within the cell nucleus? What is the difference between smooth and rough endoplasmic reticulum?
What is the numeric relation between pyrimidine and purine bases in the DNA molecule? Is that relation valid in RNA molecules?
Which are the nucleotides "portions" that bind in the formation of nucleic acids? What is meant by the 5' and 3' extremities of nucleic acids?
Where would you expect a freshwater fish to get most of its water from?a.)Secretion b.) Absorption c.) Metabolism of food
Where do the light-independent reactions take place in C3 photosynthesis? a)Mesophyll cells during the daytime b) Bundle-sheath cells at night
When trying to determine the endosymbiotic origin of a chloroplast, what evidence would lead you to believe each of the following: a) primary endosymbiotic event only b) secondary endosymbiotic even
What are pentoses? To what organic group do pentoses belong? Are nucleotides formed of only one type of pentose?
Question 1: What are nucleic acids? What is the historic origin of this name? Question 2: Of what units are nucleic acids constituted? What are the chemical entities that compose that unit?
Question 1: What is the action mechanism of the antiretroviral drugs called protease inhibitors which are used against HIV infection? Question 2: What are allosteric enzymes?
For the enzymatic reaction what is the effect of a substance with the same spatial conformation as an enzymatic substrate? How is this type of substance known?
How is the cooling of organs and tissues for medical transplants associated with the effect of temperature upon enzymatic reactions?
Concerning enzymatic reactions, how different are the graphic curve of the variation of the speed of a reaction as function of substrate concentration and the curve of variation of the speed of a re
What happens to a denatured enzyme regarding its functionality? How can that result be explained with the help of the lock and key model?
Question 1: On what structural level of the enzyme (primary, secondary, tertiary or quaternary) does the enzyme-substrate interaction depend? Question 2: What is the activation center of an enzyme?
What are enzymes? What is the importance of enzymes for living beings? How does the formation of the enzyme-substrate complex explain the reduction of the activation energy of chemical reactions?
Assuming a single open reading frame, how many different polypeptides spanning at least 2 exons can be produced from a gene that has 2 introns?
When Hershey and Chase infected bacterial cells that had been grown in the presence of radioactive phosphorus with bacteriophage T2, both the phage RNA and DNA must have incorporated the labeled pho
What physiological conditions will stimulate glycogen degradation in each tissue? What are the signals for these conditions, and how do they stimulate glycogen degradation?
Discuss the importance of motility in the life cycle of parasitic protozoa. Why is the PAV allele more sensitive than the AVI allele and what are the advantages of PAV allele.
Explain how the quantitative proteomics technique SILAC works. In addition to a general description your answer should include the isotopes used and how complete incorporation is achieved.
Explain the difference between ‘metabolomics' and ‘metabonomics'. What are the main challenges associated with metabolomics?
Name two transcriptomic technologies. Identify an advantage for each technology you have named above.
Briefly describe two ways in which this method differs from traditional Sanger sequencing, and what effect this has had on genome sequencing strategies.
Outline the steps required for the synthesis of an oligonucleotide from phosphoramidite precursors. How has our ability to routinely synthesize oligonucleotides impacted on ourability to synthesise ge