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Process of sexual reproduction which involves meiosis and syngamy is

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Important Questions on Modes of Reproduction

EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
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 in Plants>Modes of Reproduction>Sexual Reproduction
Double fertilization is exhibited by:
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Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Union of Pronuclei of the gametes is called ___.
MEDIUM
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
A flower with Tt genotype is cross - pollinated by TT pollens. What will the genotypes of the resulting endosperm and embryo, respectively, be?
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as
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Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
The process of double fertilization is the
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Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Function of filiform apparatus is to:
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Angiospermic plants are characterised by
(i) Double fertilisation
(ii) Triploid endosperm
(iii) Diploid endosperm
Choose the correct option from the following regarding above statements?
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Which one of the following does NOT represent asexual reproduction?
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Strobilanthus kunthiana flowers once in _______
HARD
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
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
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Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Which is the most common mechanism of genetic variation in the population of sexually-reproducing organism?
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Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
In angiosperms, the development of male gametophyte takes place from ___________.
MEDIUM
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
The additional nuclear ploidy levels found in a diploid angiosperm species in full bloom compared to its vegetative stage are
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Which cell of the female gametophyte is involved in the formation of primary endosperm nucleus (PEN) after fertilization ?
MEDIUM
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Describe the process of double fertilisation in angiosperms. What is its significance?
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Amphimixis is:
HARD
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Which of the following flowers only once in its life-time?
EASY
Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Which one of the following generates new genetic combinations leading to variation?
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Biology>Reproduction in Plants>Modes of Reproduction>Sexual Reproduction
Which of the following animal is not viviparous?