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Pollen tube enters the embryo sac usuall...

Pollen tube enters the embryo sac usually

A

1)by penetrating egg cell

B

2)through one degenerated synergid

C

3)by destroying antipodal cells

D

4)between persistent synergid and central cell

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The correct Answer is:
B
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TRUEMAN BIOLOGY-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
  1. In angiosperms, pollen tube liberates its male gametes into:

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  2. Total number of nuclei involved in double fertilization is

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  3. Pollen tube enters the embryo sac usually

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  4. Development of embryo in angiosperm is

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  5. The wheat grain/maize grain has an embryo with one, large, shield shap...

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  6. Pollination is stimulus necessary for the fruit development. It can be...

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  7. Ovule integument gets transformed into

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  8. Endosperm in angiosperms is formed from secondary nucleus

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  9. Endosperm of angiosperms is different from that of gymnosperms becaus...

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  10. The most common type of development of endosperm is

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  11. Coconut has

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  12. When only the first division is followed by cytokinesis, the developme...

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  13. Endosperm is hard/stony in

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  14. Endosperm is hemicellulose in Date palm and oily in Coconut. What type...

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  15. A homogamous tall pistilltate plant (TT) is crossed with homogamous dw...

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  16. Milky water of green Coconut is

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  17. Number of chromosomes is 12 in endosperm. What shall be the number in ...

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  18. The cell of endosperm have 24 chromosomes. What will be the number of ...

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  19. How many meiosis are required to produce 50 seeds of tabacco

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  20. The number of chromosomes in radicle is 16. What will be number of chr...

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