Almost all of the major animal body plans seen today appeared in the fossil record over 500 million years ago at the beginning of the

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#Question id: 160

#XL - T Zoology

Of the 20 standard amino acids, only ___________ is not optically active.  The reason is that its side chain ___________.

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#Question id: 2062

#XL - S Microbiology

Which of the following types of molecules lack hydrophilic domains?

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#Question id: 15174

#XL - S Microbiology

Pyrococcus abyssi and Pyrodictium occultum are hyperthermophiles found in hot areas of the seafloor. They usually do not grow well

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#Question id: 3916

#XL - Q Biochemistry

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#Question id: 3677

#XL - S Microbiology

Which protein can catalyze the formation of phosphodiester bonds?