Given the pKa values of different acidic sites in cysteine, the principal ionic form which will never exist at any pH

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#Question id: 1569

#XL - S Microbiology

A bacterium entering the body through a small cut in the skin will do which of the following?

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#Question id: 18078

#XL - S Microbiology

Which of the following can be found in gymnosperms? 

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#Question id: 2091

#XL - S Microbiology

Proteins can be attached to the phospholipid bilayer plasma membrane by covalently linked hydrocarbon groups. Which of the following mechanisms are not employed in this anchoring?

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#Question id: 17803

#XL - R Botany

Mitotic activity by the apical meristem of a root makes which of the following more possible? 

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#Question id: 3773

#XL - Q Biochemistry

DNA contains the template needed to copy itself, but it has no catalytic activity in cells. What catalyzes the formation of phosphodiester bonds between adjacent nucleotides in the DNA polymer being formed during DNA replication?