How many meiotic divisions are necessary to produce 100 pollen grains ?
  • 100
  • 50
  • 25
  • 20
Double fertilization means:
  • Fusion of two eggs
  • Fusion of egg and pollen nuder of two pollen grains
  • Fusion of two polar nuclei with one male gamete
  • Fusion between synergid cells and male gamete
Pollination by bats is called:
  • omithophily
  • Entromophily
  • Cheiropterophily
  • Hydrophily
Pollination by snails is called:
  • Malecophily
  • Zoophily
  • Anemophily
  • Hydrophily
Development of fruit without fertilizations is:
  • Parthenogenesis
  • Heterostyly
  • Parthenocarpy
  • Agamospermy
Who discovered fertilization?
  • Nawaschin
  • Strassburger
  • Leeuwen Hock
  • Robert Hook
When more than one embryoper embryosac is found. It is called:
  • Embryogeny
  • Amphimisis
  • Agamospormy
  • Polyembryoni
When pollen tube enter into the nucellus through micropyle is called:
  • Porogamy
  • Xenogamy
  • Mesogamy
  • Dikogamy
Maturation of male and female sex organs at different times is known as:
  • Herkogamy
  • Dichogamy
  • Polygamy
  • Apogamy
Stalk of ovule is called :
  • Funicle
  • Caruncle
  • Nucellus
  • Pedicel
Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false Assertion: Pollen grains of some species can cause asthma. Reason: Pollen grains of some species are act as allergens.
  • (a)
  • (b)
  • (c)
  • (d)
Match the column
sexual-reproduction-in-flowering-plants-mcq-2.png
  • p ->iii, q->ii, r ->iv, s -> i
  • p ->ii, q->iii, r ->i, s -> iv
  • p ->i, q->ii, r ->iv, s -> iii
  • p ->ii, q->iii, r ->iv, s -> i
Starting from the innermost part, the correct sequence of parts in an ovule are
  • egg, nucellus, embryo sac, integument
  • embryo sac, nucellus, integument, egg
  • egg, integument, embryo sac, nucellus.
  • egg, embryo sac, nucellus, integument
During microsporogenesis, meiosis occurs in:
  • Endothecium
  • Microspore tetrads
  • Pollen grains
  • Microspore mother cells
Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false Assertion : Insects visit flowers to collect honey. Reason: Attractive colour of flowers prevents the insects from damaging other parts of the plant
  • (a)
  • (b)
  • (c)
  • (d)
Read the assertion and reason carefully to mark the correct option out of the options given below: (a) If both the assertion and the reason are true and the reason is a correct explanation of the assertion. (b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion. (c) If the assertion is true but the reason is false. (d) If both the assertion and reason are false Assertion : Meiosis and syngamy are essential in sexual reproduction. Reason : Meiosis and syngamy are not essential in sexual reproduction.
  • (a)
  • (b)
  • (c)
  • (d)
In which one of the following, pollination is autogamous?
  • Xenogamy
  • Chasmogamy
  • Geitonogamy
  • Cleistogamy
An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is
  • Cuticle
  • Sporopollenin
  • Cellulose
  • Lignin
Amongst the pollinating agent which one is the most dominant?
  • Butterflies and flies
  • Beetles and wasps
  • Bees
  • Moths and birds
Seed is
  • Fertilized ovule
  • Fertilized endosperm
  • Formed from pericarp
  • Modification of integument
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