Damaged sieve elements are sealed off, but because of the processs that plug sieve plates pores, excuded phloem sap from wounds that sever sieve elements. Exudation of sap enhanced by the inclusion of;

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#Question id: 18663

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

When a protein exists in mono-, di- and tri-phosphorylated forms. The difference of a couple of phosphate groups has no significant effect on the overall relative molecular mass of the protein, hence a single band on SDS gels, but the small charge difference introduced on each molecule can be detected by

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#Question id: 1958

#Section 2: General Biology

Both the eye and the respiratory tract are protected against infections by which of the following?

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#Question id: 16837

#General Aptitude

Which figure can be formed with the given pieces?

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#Question id: 290

#Section 2: General Biology

Which of the following is a TRUE statement about ionic bonds in protein structure:

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#Question id: 14699

#Section 1: Engineering Mathematics

If A and B are arbitrary events, then