The disruption of which of the following interactions directly contributes towards removing 2,3-BPG from HB? a) Tyr 145 - Val 98 b) His 146 - Lys 40 c) His 146 - Asp 94 d) Tyr-145 - His 146

Why are structural analogs of sugar molecules (such as Oseltamivir and zanamivir) effective in treatment of influenza-virus infection?

Q27

explain the most likely steps of what might happen inside a MDA-MB-231 cell after it is exposed to UV light.

Which of the following statement is false regarding the SARS-CoV-2 protease Mpro? a) Mpro catalyze the translation of viral RNA into polyproteins b) Mpro is an ideal drug target because its structure is largely conserved across the SARS-CoV family c) N3 is an irreversible inhibitor that block the substrate binding site of Mpro d) Mpro forms a dimeric structure and each protomer is composed of three domains

Moderna and Pfizer vaccines for COVID-19 use mRNA to the Spike protein combined with lipids. Which of the following is/are advantages of this type of vaccine compared to an inactivated virus vaccine? Select ALL correct answers. a) The vaccine is more stable for transport. b) The vaccine does not contain the virus so it cannot give you COVID-19. c) The vaccine can be rapidly produced in a slightly different form to protect from variants of SARS-CoV-2. d) The vaccine does not need a booster.