9
Question
Which of the following is a physical mutagen for induced mutagenesis in crop plants?
Which of the following is a physical mutagen for induced mutagenesis in crop plants?
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Solution
The correct option is A X-rays
Mutation breeding is an important technique in crop improvement. It uses either chemical mutagens or physical mutagen. Different kinds of radiations like X-rays, gamma rays UV rays, which cause mutations are called as physical mutagens. The electromagnetic radiations, like X-rays, penetrate tissues from a few millimetres to many centimetres. This results in mutations.
Few chemical mutagens are ethyl methane sulphonate (EMS), nitrous acid, nitrosoethyl urea, nitromethyl urea, sodium azide etc.
Mutation breeding is an important technique in crop improvement. It uses either chemical mutagens or physical mutagen. Different kinds of radiations like X-rays, gamma rays UV rays, which cause mutations are called as physical mutagens. The electromagnetic radiations, like X-rays, penetrate tissues from a few millimetres to many centimetres. This results in mutations.
Few chemical mutagens are ethyl methane sulphonate (EMS), nitrous acid, nitrosoethyl urea, nitromethyl urea, sodium azide etc.
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