The micronutrient required for the synthesis of the plant hormone auxin is: MCQ with Answer and Explanation

The micronutrient required for the synthesis of the plant hormone auxin is:
A. Iron
B. Zinc
C. Manganese
D. Boron
Answer: Option B
Solution (By JKExamLibrary)
Zinc is an essential micronutrient for plants, involved in the synthesis of the auxin indole-3-acetic acid (IAA) via the activation of tryptophan synthetase. Zinc deficiency causes 'little leaf' and 'rosette' diseases, stunted growth, and reduced internodes. Iron is needed for chlorophyll synthesis, manganese for photosynthesis, and boron for pollen germination.

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Consider statements about genetics: 1. DNA is transcribed into mRNA. 2. mRNA is translated into protein. 3. tRNA carries amino acids to the ribosome. Which are correct?
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