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Which one of the following statement is ...

Which one of the following statement is true?

A

Pollen grains are released from anthers at 2-celled stage over 60 percent of angiosperms

B

Primary sporogenous cell always directly behaves as the microspore mother cell

C

A megaspore divides twice to form eight nucleated embryosac

D

Egg and synergids always lie near the chalazal end of ovule

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ALLEN-TEST PAPER 2-BIOLOGY
  1. Study the given statements carefully and give the answer. (A)Bark is...

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  2. Vascular bundles surrounded by a sclerenchymatous bundle sheath is a f...

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  3. Which one of the following statement is true?

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  4. An ovule which becomes curved so that the nucellus and embryo sac lie ...

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  5. Outer integument in seed is known as :-

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  6. Given below is the diagram of the transverse section of monocot stem. ...

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  7. "Neel" is a dye plant of a family fabaceae, its botanical name is :-

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  8. Read following four statement (a-d) and select correct statements:- ...

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  9. How many cells in the list given below are haploid? Microspore mother ...

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  10. How many part of plant originates endogenously? Axillary bud, Root hai...

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  11. Match the two columns and give the correct answers

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  12. Some examples are given below how many of them have both following cha...

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  13. Marginal placenta, unilocular and monocarpellary are characters of :-

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  14. In Rhizophora, the negatively geotropic roots are found, which come ab...

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  15. Find the odd one from the other options :-

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  16. Some characters are given below, which of the following is correct abo...

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  17. In which one of the following plant only xenogamy is possible ?

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  18. Filiform apparatus is associated with:

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  19. Pollination in Yucca plant takes place by :

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  20. Which one of the following is not a post fertilisation event ?

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