Biological oxidation-reduction reactions always involve:

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#Question id: 5755

#XL - S Microbiology

A researcher studying bacterial toxin predicts that a lysine within the toxin is important for binding it’s target cell.  She used site-directed mutagenesis to change a codon for lysine (AAA) to one for asparagine (AAU).  However, the mutant toxin still binds to its target cell just as well as the wild-type toxin bound and appears to have no other changes. This type of mutation is probably

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#Question id: 14998

#XL - T Zoology

You set up a monohybrid cross between true breeding round winged and true breeding oval winged insects. Your F1 offspring have round wings, and you collect the following numbers of F2: Round wings: 302; Oval wings: 86. Which of the following statements is NOT correct?

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#Question id: 1593

#XL - S Microbiology

Which of the following results in long-term immunity?

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#Question id: 27252

#XL - T Zoology

Messelsen and Stahl model of replication was called

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#Question id: 20206

#XL - P Chemistry

If the speed of electron in Bohr first orbit of hydrogen atom be x, then speed of the electron in 3rd orbit is