MCQ Question for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants

Check the below NCERT MCQ Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants with Answers available with PDF free download. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest syllabus and examination pattern issued by CBSE, NCERT and KVS. Our teachers have provided below Sexual Reproduction in Flowering Plants Class 12 Biology MCQs Questions with answers which will help students to revise and get more marks in exams

Sexual Reproduction in Flowering Plants Class 12 Biology MCQs Questions with Answers

Refer below for MCQ Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants with solutions. Solve questions and compare with the answers provided below

Question. Number of meiotic divisions required to produce 200/400 seeds of pea would be
(a) 200/400
(b) 400/800
(c) 300/600
(d) 250/500. 

Question. In water hyacinth and water lily, pollination takes place by
(a) insects or wind 
(b) water currents only
(c) wind and water 
(d) insects and water.

Question. Filiform apparatus is a characteristic feature of
(a) suspensor 
(b) egg
(c) synergid 
(d) zygote

Question. Persistent nucellus is called as _______ and is found in _______.
(a) perisperm, black pepper 
(b) perisperm, groundnut ‘
(c) endosperm, black pepper
(d) endosperm groundnut

Question. In which one of the following, both autogamy and geitonogamy are prevented?
(a) Wheat
(b) Papaya 
(c) Castor
(d) Maize

Question. Formation of gametophyte directly from sporophyte without meiosis is
(a) apospory 
(b) apogamy
(c) parthenogenesis
(d) amphimixis.

Question. In an angiosperm, how many microspore mother cells are required to produce 100 pollen grains?
(a) 75
(b) 100
(c) 25 
(d) 50

Question. In angiosperm, the endosperm is
(a) diploid
(b) triploid 
(c) haploid
(d) polyploid

Question. In angiosperm, all the four microspores of tetrad are covered by a layer which is formed by
(a) pectocellulose 
(b) callose
(c) cellulose
(d) sporopollenin.

Question. Functional megaspore in an angiosperm develops into an
(a) endosperm
(b) embryo sac 
(c) embryo
(d) ovule.

Question. Double fertilisation was first discovered in 1898 by _______ in Fritillaria and Lilium.
(a) Nawaschin 
(b) Strasburger
(c) Amici
(d) Focke

Question. Ploidy of ovum of angiosperms is 
(a) haploid 
(b) diploid
(c) triploid
(d) polyploid

Question. Female gametophyte of angiosperms is represented by
(a) ovule
(b) megaspore mother cell
(c) embryo sac 
(d) nucellus.

Question. The role of double fertilisation in angiosperms is to produce
(a) cotyledons
(b) endocarp
(c) endosperm 
(d) integuments.

Question. From among the sets of terms given below, identify those that are associated with the gynoecium.
(a) Stigma, ovule, embryo sac, placenta 
(b) Thalamus, pistil, style, ovule
(c) Ovule, ovary, embryo sac, tapetum
(d) Ovule, stamen, ovary, embryo sac

Question. Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called
(a) xenogamy
(b) geitonogamy 
(c) karyogamy
(d) autogamy.

Question. In majority of angiosperms,
(a) egg has a filiform apparatus
(b) there are numerous antipodal cells
(c) reduction division occurs in the megaspore mother cells 
(d) a small central cell is present in that embryo sac.

Question. Advantage of cleistogamy is
(a) no dependence on pollinators 
(b) vivipary
(c) higher genetic variability
(d) more vigorous offspring. 

Question. Which of the following statement is true?
(a) Spores are gametes
(b) Spores and gametes are diploid
(c) Gametes are always haploid 
(d) Spores are always diploid

Question. Which one of the following fruits is parthenocarpic?
(a) Jackfruit
(b) Banana 
(c) Brinjal
(d) Apple

Question. Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in
(a) papaya 
(b) bottle gourd
(c) maize
(d) all of these.

Question. Nucellar polyembryony is reported in species of
(a) Citrus 
(b) Gossypium
(c) Triticum
(d) Brassica.

Question. Apomixis is 
(a) formation of seeds by fusion of gametes.
(b) formation of seeds without syngamy and meiosis. 
(c) formation of seeds with syngamy but no meiosis.
(d) None of the above

Question. Megasporangium is equivalent to
(a) nucellus
(b) ovule 
(c) embryo sac
(d) fruit.

Question. Eight nucleated embryo sac is
(a) only monosporic
(b) only bisporic
(c) only tetrasporic
(d) any of these. 

Question. What does the filiform apparatus do at the entrance into ovule?
(a) It brings about opening of the pollen tube.
(b) It guides pollen tube from a synergid to egg. 
(c) It helps in the entry of pollen tube into a synergid.
(d) It prevents entry of more than one pollen tube into the embryo sac.

Question. Emasculation is not required when flowers are
(a) bisexual
(b) intersexual
(c) unisexual 
(d) either (a) or (b)

Question. Anther is generally
(a) monosporangiate
(b) bisporangiate
(c) letrasporangiate 
(d) trisporangiate.

Question. Male gametophyte of angiosperms is shed at
(a) four celled pollen grain
(b) three celled pollen grain 
(c) microspore mother cell
(d) anther.

Question. In a cereal grain the single cotyledon of embryo is represented by
(a) coleoptile
(b) coleorhiza
(c) scutellum 
(d) prophyll.

Question. Which of the following statement is correct?
(a) Sporopollenin can withstand high temperatures but not strong acids.
(b) Sporopollenin can be degraded by enzymes.
(c) Sporopollenin is made up of inorganic materials.
(d) Sporopollenin can withstand high temperature as well as strong acids and alkalis. 

Question. Proximal end of the filament of stamen is attached to the
(a) placenta
(b) thalamus or petal 
(c) anther
(d) connective.

Question. One of the most resistant biological material present in the exine of pollen grain is
(a) pectocellulose
(b) sporopollenin  
(c) suberin
(d) cellulose.

Question. The polyembryony commonly occurs in
(a) tomato
(b) potato
(c) Citrus  
(d) turmeric.

Question. Both, autogamy and geitonogamy are prevented in
(a) papaya 
(b) cucumber
(c) castor
(d) maize.

Question. The portion of embryonal axis between plumule (future shoot) and cotyledons is called
(a) hypocotyl
(b) epicotyl 
(c) coleorhiza
(d) coleoptile.

Question. The arrangement of the nuclei in a normal embryo sac in the dicot plants is
(a) 3 + 3 + 2
(b) 2 + 4 + 2
(c) 3 + 2 + 3 
(d) 2 + 3 + 3.

Question. Double fertilisation is exhibited by
(a) algae
(b) fungi
(c) angiosperms 
(d) gymnosperms.

Question. The female gametophyte of a typical dicot at the time of fertilisation is
(a) 8 – celled
(b) 7 – celled  
(c) 6 – celled
(d) 5 – celled

Question. Which one of the following statements is not true?
(a) The flowers pollinated by flies and bats secrete foul odour to attract them.
(b) Honey is made by bees by digesting pollen collected from flowers. 
(c) Pollen grains are rich in nutrients and they are used in the form of tablets and syrups.
(d) Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.

Question. Function of filiform apparatus is to
(a) recognise the suitable pollen at stigma
(b) stimulate division of generative cell
(c) produce nectar
(d) guide the entry of pollen tube. 

Question. Persistent nucellus in the seed is known as
(a) tegmen
(b) chalaza
(c) perisperm 
(d) hilum.

Question. Study of pollen grains is called
(a) micrology
(b) anthology
(c) palynology  
(d) pomology

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