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Papaya is a dioecious species with XY sexual genotype for male and XX for female. What will be the genotype of the embryos and endosperm nuclei after double fertilisation?

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Important Questions on Sexual Reproduction in Flowering Plants

EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Which cell of the female gametophyte is involved in the formation of primary endosperm nucleus (PEN) after fertilization ?
EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Features which are highly unique to angiosperms
I) Multicellular, much reduced and dependent gametophyte
II) Siphonogamous fertilization
III) Fusion of male gametes with egg cell and secondary nucleus
IV) Development of ovule into seed
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Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
The additional nuclear ploidy levels found in a diploid angiosperm species in full bloom compared to its vegetative stage are
MEDIUM
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
A flower with Tt genotype is cross - pollinated by TT pollens. What will the genotypes of the resulting endosperm and embryo, respectively, be?
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Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Double fertilisation is characteristic of
EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
The process of double fertilization is the
EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
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?
EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
The source of mammalian hormone "Relaxin" is
EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Double fertilization is exhibited by:
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Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Union of Pronuclei of the gametes is called ___.
EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
The hard outer layer of pollens, named exine, is made of
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Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Pollen grains of a fruiting plants species are deposited on the female flower by a pollinator. However, the female flower does not get fertilized. Which of the following observation is true?
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Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Which of the following species makes the largest true flower in the world?
EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
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>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Which one of the following is NOT a mode of asexual reproduction?
EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Testosterone is secreted by which endocrine part of the testis?
EASY
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
The only organ which is capable of producing Fructose in humans is:
HARD
Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
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>Sexual Reproduction in Flowering Plants>Fertilization in Plants
“Double fertilization” is a complex mechanism of flowering plants that is also unique to angiosperms. Choose the most appropriate statement from the options listed below that explains this phenomenon.
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Biology>Reproduction in Plants>Sexual Reproduction in Flowering Plants>Fertilization in Plants
Transmission tissue is characteristic feature of: