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

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#Question id: 19781

#XL - P Chemistry

Rutherford’s experiment established that

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#Question id: 11324

#XL - R Botany

Many temperate lakes develop pronounced thermal stratification during the summer months. In which zone of such lakes does temperature change most rapidly with depth?

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#Question id: 10236

#XL - T Zoology

Following figure represent fundamental and realized nich of species P and Q in gradient of temperature along sea shore. which of the following statement are correct? 

A) Fundamental niche of species P is greater than its realized nich

 B) Fundamental niche of species Q is greater than its realized nich

 C) Species Q is strong competitor than species P

 D) There is no effect on spaced occupied by Q in the presence or absence of species P

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#Question id: 88

#XL - Q Biochemistry

Anomers can be interconverted ________.

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#Question id: 169

#XL - T Zoology

 An octapeptide composed of four repeating glycylalanyl units has: