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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.

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प्रश्न

Can cross-pollination occur in cleistogamous flowers? Give reasons for your answer.

कारण सांगा
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उत्तर

Cross-pollination cannot occur in cleistogamous flowers. Cleistogamous flowers do not open at all. In these flowers, the anthers and stigma are close together; when the anthers dehisce in the flower buds, pollen grains touch the stigma, resulting in pollination. As a result, these flowers are always self-pollinated since they remain closed, and cross pollen cannot land on the stigma. Cleistogamous flowers can pollinate and set seeds without pollinators.

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पाठ 2: Sexual Reproduction in Flowering Plants - NCERT EXERCISES [पृष्ठ ६८]

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नूतन Biology [English] Class 12 ISC
पाठ 2 Sexual Reproduction in Flowering Plants
NCERT EXERCISES | Q 7. ii. | पृष्ठ ६८
एनसीईआरटी Biology [English] Class 12
पाठ 1 Sexual Reproduction in Flowering Plants
EXERCISES | Q 7. b. | पृष्ठ २५

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