Which one of the following is not a mutagen
Which one of the following is not a mutagen
- A
Ethyl methane sulphonate
- B
Acetic acid
- C
Nitrous acid
- D
Ethylene oxide
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In a cross between white-flowered parents, $F_1$ progeny was uniformly purple-flowered. The $F_2$ progeny showed a phenotypic ratio $9 : 7$ between purple-flowered and white-flowered plants. The above result indicates that the flower colour is controlled by
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