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: 5555

#Unit 5. Developmental Biology

The formation of the fertilization envelope requires an increase in the cytosolic concentration of ________.

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#Question id: 10683

#Unit 10. Ecological Principles

Which of the following interaction shown in figure

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#Question id: 11673

#Unit 7. System Physiology – Animal

Low selectivity of solute movement is a characteristic of ________.

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#Question id: 17810

#Unit 11. Evolution and Behavior

Triassic period of Mesozoic era has characteristics by___

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#Question id: 22953

#Unit 5. Developmental Biology

The MADS box gene form tetramers that bind to