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Question

Match the following

Column - IColumn-II(i) Dicliny(a) Development of sterile pollen or ovary(ii) Dichogamy(b) Anthers and stigma are placed at different position(iii) Herkogamy(c) Pollen release and stigma receptivity are not synchronised(iv) Self sterility(d) production of unisexual flowers


A

(i)-(d), (ii)-(c), (iii)-(b), (iv)-(a)

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B

(i)-(a), (ii)-(b), (iii)-(c), (iv)-(d)

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C

(i)-(d), (ii)-(b), (iii)-(c), (iv)-(a)

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D

(i)-(d), (ii)-(a), (iii)-(b), (iv)-(c)

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Solution

The correct option is A

(i)-(d), (ii)-(c), (iii)-(b), (iv)-(a)


Cross pollination is highly beneficial to plants as it integrates genetic variability in plant species. To promote cross pollination, plants have developed many adaptations. These adaptations include dicliny (production of unisexual flowers), dichogamy (maturation of anthers and stigmas at different time intervals), herkogamy (arrangement of anthers and stigmas at different positions) and self-incompatibility (development of sterile pollen or ovary). These adaptations almost nullify the possibility of self pollination.


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