Identify and briefly describe the different PEGylation strategies you can use to PEGylate this peptide and draw the chemical structure of the resulting mPEG peptide conjugates

PLEASE have the following and help D:. What i need for the chosen of 2/3 choices.  2)   Illustrate detailed chemical scheme for how you will functionalize your biomolecule to the surface of the sensor (e.g. if you wanted to functionalize a protein to a gold SPR chip, you should could show the assembly of an amine-terminated SAM, followed by carbodiimide coupling of. the protein). These schemes should be drawn using a chemical illustration software package (ChemDraw / ChemSketch).Your chemical schemes should be as detailed as necessary to accurately depict the chemical design of your system, DO NOT INCLUDE a step-wise mechanism, it is not necessary. You should include at least one literature reference to support your conjugation strategy.3)  Include an illustration of the functional sensor, and describe whether the sensor is label-free or not, what signal is observed, and how you would detect the interaction (i.e. if a labeled antibody is required, you should describe what label would…

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How does a protein 'know' how to fold into its native conformation and in general why is folding fast (ie. faster than trial - and - error process - recall levinthals paradox)? Breiefly explain using proper terminology.