Which of the following parts of abscisic acid is responsible for the occurrence of two enantiomorphic forms, (R)-abscisic acid and (S)-abscisic acid?
A. The six membered ring
B. The chiral center
C. The unsaturated six-carbon substituent
D. None of the above
Answer: Option B
Related Questions on Plant Anatomy and Physiology
A. Cinnamomum - Amoora association
B. Bischofia - Dillenia association
C. Shorea - Lagerstroemia association
D. Mesua - Michelia association
Which of the following react with haemoglobin, forming methemoglobin which will not take up oxygen?
A. Nitrates
B. Nitrites
C. Carbides
D. Oxides
Internally, hydathode shows a group of loosely arranged parenchymatous cells called as
A. Epiderm
B. Epithelium
C. Ampithecium
D. Epithem

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