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The following sequence of RNA forms a “hairpin” structure. The duplex region contains all Watson-Crick base pairs without any gaps or mismatches.
5'-AAACCGGAUAAUUGGGAUUAUCCGGUUAGG-3'
In the space below type the sequence of either of the two regions that form a duplex with each other. Be careful not to type any spaces or additional characters. (Do not enter in 5' or 3'. For example, if a potential answer was 5'-AAUUGG-3' then you would simply type: AAUUGG.)
The following sequence of RNA forms a “hairpin” structure. The duplex region contains all Watson-Crick base pairs without any gaps or mismatches.
5'-AAAGGAUUAGGGCAACGGCCUGCCCUAAUG-3'
In the space below type the sequence of either of the two regions that form a duplex with each other. Be careful not to type any spaces or additional characters. (Do not enter in 5' or 3'. For example, if a potential answer was 5'-AAUUGG-3' then you would simply type: AAUUGG.)
Shown below is data from an experiment assessing the activity of an enzyme following Michaelis-Menten kinetics.
What would the Vmax (in units of micromolar/min) of this reaction be if one third the amount of enzyme had been used for the experiment?
(Note: do not enter any units. You just need to enter in the numerical value, e.g. 15. Obviously the answer isn't 15 or I wouldn't have written that. I guess I could be weird and try to throw you by writing that and having the answer as actually that. But no, I wouldn't do that to you. Plus, you know the answer isn't 15. You've already worked it out and stopped reading this nonsense I'm still typing...)
The following data were obtained in a study of an enzyme and substrate A, known to follow Michaelis-Menten kinetics:
Estimate the Km (in units of micromolar) for the enzyme substrate reaction.
The following data were obtained in a study of an enzyme and substrate A, known to follow Michaelis-Menten kinetics:
Estimate Vmax in units of micromolar/min. You do not need to enter unit, only a value.
Which one of the following anticodons would bring in the amino acid proline?
Note: you'll have already seen a question with the same image below. The question order shouldn't be randomised. There are a few questions with this same image.
The image below shows the titration curve for a dipeptide (think what that means).
The pI for this dipeptide is 5.0
What would the average charge of this dipeptide be at a pH of 8?
(You should be able to work this out even without knowing the precise identity of the amino acids.)
Which one of the following non-coding strands of DNA can be transcribed into mRNA to encode the polypeptide sequence MetLeuGlyAsp?
(Note: Assume standard initiation of translation, but do not assume there is a stop codon after the codon for Asp. Assume that the sequence continues on...)
Amino acids are attached to tRNAs via an: