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Maturation of stigma and anthers at diff...

Maturation of stigma and anthers at different times in te same flower is

A

Dichotomy

B

Dichogamy

C

Heterospory

D

Heterostyly

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The correct Answer is:
B
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The phenomenon of maturation of anthers earlier then the stigma of the same flower is

Maturation of anthers and stigma at the same times is

Given below are five statements (i-v) regarding constrivances to ensure cross - pollination is plants (i) Dicliny - Anthers stigmas mature at different times in a bisexual flower. (ii) Dichogamy - Flowers are unisexual. (iii) Prepotency - Pollen grains of the same flower germinate more rapidly over the stigma than the pollen grains another flower. (iv) Heterostyly - Two or three types of flowers with different heights of styles. (v) Herkogamy - A mechanical device to prevent self - pollination which of the above statement are correct ?

The condition of maturation of stigma before anthers of the same flower is

The condition of maturation of anthers and stigmas of the same flower simultaneously is

I. Transfer of pollen grains from anther to the stigma of the same flower is termed as .......P...... II. Transfer of pollen grains from anther to the stigma of another flower of same plant is termed as ......Q..... III. Transfer of pollen grains from anther to stigma of a different plant is termed as......C...... Fill in the blanks P, Q and R with give terms.

Which of the following is an outbreeding device ? a. If pollen release and stigma receptivity are not synchronised. b. If the anther and stigma are placed at different positions so that pollen cannot come in contact with the stigma of the same flower. c. Self-incompatibilty which prevents self-pollen (from the same plant) from fertilising the ovules by inhibiting pollen germination or pollen tube growth in the pistil. d. Production of the unisexual flower

When pollen grains of a flower are transferred to stigma of another flower of a different plant, the process is called

When anthers and stigma of a given flower mature at different points of time, it is a case of

ARIHANT NEET-SEXUAL REPRODUCTION IN FLOWERING PLANTS -ASORTED QUESTIONS
  1. When the radial walls break up releasing the protoplasm into the anoth...

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  2. What is meant by double fertilisation?

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  3. Maturation of stigma and anthers at different times in te same flower ...

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  4. In which of the following pollen kit is present?

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  5. Faster and batter growth of pollen from other plants then the pollen f...

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  6. In pin - eyed flowers of Primula

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  7. When the ovule is curved and embryo sac becomes horse shoe shaped, suc...

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  8. In most of the plants, the micropyle is formed by

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  9. The term sarcotesta is applied, when the outer integument becomes

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  10. Perisperm is

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  11. Bombax ceiba and Butea monosperma are

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  12. Chasmocleistogamous flowers

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  13. Lever mechanism of pollination is a characteristic adaptation for ento...

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  14. The phenomenon of floral parts acting as a barrier to self pollination...

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  15. Embryogeny is branchof embryology dealing with

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  16. The isolation of megasporocyte from the rest of the nucellar tissue be...

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  17. When ovule is straight with funiculus, embryo sac, chalaza and microp...

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  18. A yellow sticky substance present on the surface of entomophilous poll...

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  19. The division of zygote in the development of crucifer type embryo is

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  20. Which of the following is not fuctionally analogous with other in the ...

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