In bacteria the elongation stage of protein synthesis does not involve:

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#Question id: 19752

#XL - P Chemistry

Which of the following is ionic ?

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#Question id: 374

#XL - Q Biochemistry

The pH of a sample of blood is 7.4, while gastric juice is pH 1.4.  The blood sample has:

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#Question id: 19934

#XL - P Chemistry

The orbital configuration of 24Cr is 3d⁵4s¹. The number of unpaired electrons in is

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#Question id: 15261

#XL - S Microbiology

Lactose and neutral red dye are used in MacConkey agar. This type of media is an example of 

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#Question id: 343

#XL - S Microbiology

Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?