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GATE BT 2021 | Question: 37
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Which of the following chemical messenger(s) is/are derivative(s) of tryptophan?
$\gamma$-amino butyric acid
Indole acetic acid
Melatonin
Serotonin
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Answer:
B;C;D
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GATE BT 2021 | Question: 18
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GATE BT 2021 | Question: 19
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GATE BT 2021 | Question: 35
Which of the following statement(s) is/are $\text{CORRECT}$ about $\textit{Agrobacterium tumefaciens}$? It contains tumor inducing plasmid It causes crown gall disease in dicotyledonous plants It is a Gram-positive soil bacterium It is used in generating transgenic plants
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GATE BT 2021 | Question: 36
Which of the following antimicrobial agent(s) is/are growth factor analog(s)? $5$-Fluorouracil Isoniazid Sulfanilamide Tetracycline
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GATE BT 2021 | Question: 38
Which of the following nucleus/nuclei is/are $\text{NMR}$ active? $^1H$ $^{13}C$ $^{16}O$ $^{32}S$
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