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Give below are the events that are obser...

Give below are the events that are observed in an artificial hybridization programme. Arrange them in the correct sequential order in which they are followed in the hybridisation programme.
(a) Re-bagging (b) Selection of parents (c ) Bagging (d) Dusting the pollen on stigma (e) Emasculation (f) Collection of pollen from male parent.

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b, c, c, f, d, a.
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Distinguish between unisexual and bisexual flowers giving one example of each. Draw a neat diagram showing fertilisation in a flower and label: a] Pollen tube b] Male germ cell c] Female germ cell, on it. OR Draw the diagram showing the germination of pollen on stigma and label the part on which pollination takes place. Answer the following questions based on diagram given aside. i] Name the part marked 'P. in the diagram. ii] How does 'P. reach part 'B'? iii] State the importance of the part 'C'. iv] What happens to the part marked 'D' after fertilisation is over? Mention the role of gamete and zygote in sexually reproducing organisms.

OSWAAL PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS -TOPIC-1 SHORT ANSWER TYPE QUESTIONS-I
  1. Mention two strategies evolved to prevent self-pollination in flowers.

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  2. In the diagram given below, show the path of a pollen tube from the po...

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  3. Identify the type of carpel with the help of diagrams given below :

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  4. Draw the diagram of a mature embryo sac and show its 8-nucleate, 7-cel...

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  5. Give below are the events that are observed in an artificial hybridiza...

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  6. Differentiate Geitonogamy from Xenogamy.

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  7. What is artificial hybridization? Explain emasculation and bagging tec...

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  8. Write a note on the significance of pollination in plants.

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  9. Name the pollinating agents of flowers like maize and wheat. Give any ...

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  10. Differentiate between monoecious and dioecious plants. Give one exampl...

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  11. How many haploid nuclei and haploid cells are present in the female ga...

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  12. What is the role of integuments of ovule after fertilization? Which is...

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  13. Even though each pollen grain has two male gametes, why are at least 1...

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  14. If the chromosome number of a plant species is 20, what would be the c...

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  15. Emasculation may not be necessary, yet bagging is necessary. Justify g...

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  16. State one advantage and one disadvantage of cleistogamy.

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  17. Where is sporopollenin present in plants? State its significance with ...

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  18. Differentiate between intine and exine.

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  19. Differentiate between a matured unfertilized embryo sac and a fertiliz...

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  20. Write the characters of a wind pollinated flower?

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