Which of the following is a mutagen (not a po | vedclass

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(D) mutagen is a physical or chemical agent that increases the frequency of mutations in an organism.$1$. $\gamma$-rays are ionizing radiations that a

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$\gamma$-rays

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(D) mutagen is a physical or chemical agent that increases the frequency of mutations in an organism.$1$. $\gamma$-rays are ionizing radiations that act as potent mutagens by causing $DNA$ damage.$2$. Colchicine is a chemical agent known for inducing polyploidy by inhibiting spindle fiber formation during cell division.$3$. Crossing over is a natural biological process during meiosis,not a mutagen.$4$. $NAD$ is a coenzyme involved in cellular respiration,not a mutagen.Therefore,$\gamma$-rays are the correct mutagen among the given options.

Which of the following is a mutagen (not a polyploidy-inducing agent)?

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