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A pollen tube grows down the style because

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Important Questions on Sexual Reproduction in Flowering Plants

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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
In Angiosperms, microsporogenesis and megasporogenesis:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
The process of double fertilization is the
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Male gametophyte in angiosperms produces :
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
The hilum is a scar on the:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
An angiosperm was identified with its endosperm of 6n. Assuming that this is a self-pollinating species, which one of the following is the correct ploidy of the parent?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Which one of the following statements is not true?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Which one of the following statements is not true?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Functional megaspore in an angiosperm develops into:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
The additional nuclear ploidy levels found in a diploid angiosperm species in full bloom compared to its vegetative stage are
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Which cell of the female gametophyte is involved in the formation of primary endosperm nucleus (PEN) after fertilization ?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
The ovule of an angiosperm is technically equivalent to
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Union of Pronuclei of the gametes is called ___.
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Which one of the following generates new genetic combinations leading to variation?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Which is the most common mechanism of genetic variation in the population of sexually-reproducing organism?
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
In the majority of angiosperms:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
The body of the ovule is fused within the funicle at
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Pollen tablets are available in the market for:
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Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Angiospermic plants are characterised by
(i) Double fertilisation
(ii) Triploid endosperm
(iii) Diploid endosperm
Choose the correct option from the following regarding above statements?
HARD
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
An apple showing monosporic type of embryo sac development assumed to develop a fruit with 12 seeds. Find out the no. of chromosomes present in megaspore mother cell, functional megaspores, egg cells, synergids, antipodals, zygote and PEN
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Double Fertilization
Double fertilization is exhibited by: