Gibberellins, ethylene and abscissic acid — task. Science CBSE, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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(Note: In some of the questions more than one answer in correct).

1. Which of these is a correct comparison of gibberellins with auxins.

Gibberellins break the seed dormancy of potato tubers
Gibberellins are involved in bolting
Gibberellins induce the production of male flowers in monoecious plants such as cucurbits
Gibberellins are efficient in inducing the formation of parthenocarpic fruits

2. Which one of these is correct regarding the physiological effects of ethylene?

Ethylene slows down the senescence of leaves and flowers
Ethylene is a gas that promotes the ripening of fruits such as tomato
Ethylene promotes the elongation of the stem and root of dicots

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