Write a backgrounder of mental illness due to covid-19?
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Write a backgrounder of mental illness due to covid-19?
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- Neurospora crassa can synthesize the amino acid arginine from a precursor as follows: precursor ornithine - citrulline arginine George Beadle and Edward Tatum identified various mutants (arg mutants) unable to synthesize arginine from this precursor. One such class (Class I) could synthesize arginine if either ornithine or citrulline was supplied. A second mutant class (Class II) could synthesize arginine if citrulline was added, but not if ornithine was added. A third class (Class II) could not synthesize arginine from either ornithine or citrulline. Which class or classes of arg mutants LACK a functional enzyme able to convert ornithine into citrulline?Imagine that a mutation has been discovered in the HBA1 gene, where amino acid residue # 1 in the alpha subunit is changed from valine to lysine. The structure of these two amino acids is shown below. How would this mutation affect the mobility of HbA in the gel?a) HbA with this mutation would have the same mobility as normal HbAb) HbA with this mutation would have the same mobility as HbSc) HbA with this mutation would have a faster mobility than normal HbA O d) HbA with this mutation would have a mobility somewhere in between HbS and normal HbAWhy are structural analogs of sugar molecules (such as Oseltamivir and zanamivir) effective in treatment of influenza-virus infection?