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In the prothallus of vascular cryptogam,...

In the prothallus of vascular cryptogam, the antherzoids and eggs mature at different tiems. As a result:

A

there is high degree of sterility

B

one can conclude that the plant is apomictic

C

self fertilization is prevented

D

there is no change in success rate of fertilization.

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JBD PUBLICATION-PLANT KINGDOM-EXAMPLE
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  2. Fill in the blanks Branching in Marchantia is………….. .

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  3. Fill in the blanks: Protonema stage is found in………….

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  4. Fill in the blanks …………..is a leafy liverwort.

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  5. Fill in the blanks Ovuliferous scale in Pinus has………….ovules.

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  6. Fill in the blanks: ……………..is an insectivorous plant.

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  7. Fill in the blanks: Pollination in Pinus is……………… .

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  8. Fill in the blanks Time interval between pollination and feritlizatoin...

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  9. Fill in the blanks Reserve food material in brown algae is in the form...

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  10. Name the plant which yield ephedrine. Write its use.

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  11. One word Name an alga where three types of zoospores are formed.

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  12. One word What is name of motilc mitospore?

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  13. One word A zygospore is haploid or diploid?

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  14. One word Name the largest Icelp?

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  15. One word Name an algae from which antibiotic is prepared?

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  16. One word Name a gymnosperm where male gametes are motile.

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  17. One word Where do you find two types of rhizoids?

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  18. Name the smallest gymnosperm.

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  19. One word Where do you find palmella stage?

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  20. One word Name an alga (unicellular) which is several cm long.

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  21. One word In which bryophytes sex organs are embedded in thallus?

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