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Which of the following has been claimed ...

Which of the following has been claimed to increase the performance of athletes and race horses?

A

Pollens

B

Honey

C

Embryos

D

Styles and stigmas

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The correct Answer is:
A
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GRB PUBLICATION-SEXUAL REPRODUCTION IN FLOWERING PLANTS-NCERT Corner
  1. The microsporangia develop further and become:

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  2. The pollen grains represents the:

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  3. The hard outer layer of pollen grains called exine is made up of:

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  4. Prollen grains are well preserved as fossils because of the presence o...

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  5. Which of the following has been claimed to increase the performance of...

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  6. Pollen grains lose viabiliyt within 30 minutes of their release in:

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  7. Arising from the placenta are the megasporangia, commonly called:

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  8. Opposite the micropylar end, representing the basal part of the ovule ...

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  9. In embryo sac, three cells are grouped together at the micropylar end ...

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  10. The only type of pollination which during pollination brings genetical...

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  11. Hair present on the cob of corn are Or Long filamentous threads pr...

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  12. The condition which prevents both autogamy and geitongamy is:

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  13. Floral rewards providing safe places to lay eggs occur in:

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  14. The central cell of embryo sac after triple fusion becomes:

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  15. The tissue in which cells are filled with reserve food materials and a...

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  16. The mature embryo in angiosperms is:

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  17. In grass family, the cotyledon is called:

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  18. The residual, persistent nucellus is called:

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  19. The wall of the ovary develops into:

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  20. A few fowering plants such as some species of Asteraceae and grasses h...

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