There are two classes A and B consisting of 40 and 52 student respectively . If the average of weight of class A is 45kg and that of class B is 40kg.Find the average of weight of all the student of class A and B.

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#Question id: 2194

#XL - S Microbiology

Which one of the following organisms would you predict has the highest proportion of unsaturated fatty acids in their membranes?

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#Question id: 34192

#XL - S Microbiology

Which of the following factors can influence the microbial growth rate in a batch culture?

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#Question id: 2053

#XL - S Microbiology

The single best chance of a tissue graft being accepted in a human recipient is if it is:

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#Question id: 9616

#XL - S Microbiology

Which mutation should least require realignment of homologous regions of a gene that is common to several related species?

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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