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Flower with a feathery and sticky stigma...

Flower with a feathery and sticky stigma, numerous light pollen, reduced petals is characteristically

A

Month pollinated flowers

B

Bird pollinated flower

C

Bee pollinated flower

D

Wind pollinated flower

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The correct Answer is:
D
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Mention the pollinating agent of an inflorescence of small dull coloured flowers with well exposed stamens and large feathery stigma. Give any one characteristic of pollen grains produced by such flowers.

A particular species of plant produces light, non-sticky pollen in large numbers and its stigmas are long and feathery. These modifications facilitate pollination by :

(i ) Write the characteristics features of anther, pollen and stigma of wind polinated flowers. (ii) How do flowers reward their insect pollinators ? Explain.

[A] : Xenogamy is defined as the transferance of pollen grain to stigma of same flower. [R] : In xenogamy, the pollen frain of a flower are transferred to stigma of a different flower of a different plant of different species.

[A]: Pollen grains from male parent are mostly transferred to the stigma in the female parent by some external ageincy. [R]: This is because the male flowers or male organs have no intenal device to reach the female organs in another flower

The following statements describe the characters of wind-pollinated plants. Which one of these statements is incorrect ? (i)The pollen grains are sticky (ii)Stamens are well exposed (iii)Flowers often have a single ovule

Draw a diagram showing germination of pollen on, stigma of a flower.

(i) Draw a diagram showing germination of pollen on stigma of a flower. (ii) Label pollen grain, male germ cells, pollen tube and female germ cell in the above diagram. (iii) Define fertilization in plants.

TRUEMAN BIOLOGY-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
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  2. Find out the correct statement

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  3. Flower with a feathery and sticky stigma, numerous light pollen, reduc...

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  4. The fruits showing edible thalamus are

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  5. Which one of the following structure found in dicot seed will be genet...

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  6. After pollination which of the following events is crucial for fertili...

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  7. Given below are certain combinations. Select the correct ones. (i) C...

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  8. If a leaf cell of gymnosperm plant had 24 chromosomes, then its endosp...

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  9. The proteinaceous substance involved in sporophytic incompatibility an...

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  10. Adventative embryony in Citus is due to

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  11. A pistillate flower of tetraploid angiosperm is pollinated by pollen f...

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  12. In a guava fruit there were 300 seeds. How many meiotic divisions must...

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  13. Vegetative propagation mint occurs by

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  14. Examine the figures (A-D) given below and select the right option out ...

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  15. Vegetative propagation in Pistia occurs by

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  16. Apomictic embryos in citrus arise from

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  17. Wind pollinated flowers are

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  18. In angiosperms, functional megaspore develops into

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  19. Nucellar polyembryony was reported by

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  20. What would be the number of chromosomes of the aleurone cells of a pla...

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