Sexual Reproduction in Flowering Plants MCQs | Sexual Reproduction in Flowering Plants Objective Type Questions with Answers

Questions
1 Functional megaspore in an angiosperm develops into
A Endosperm
B Embryo
C Embryo-sac
D Ovule

Answer:Embryo-sac
2 Rewards and attractants are required for
A Entomophily
B Cleistogamy
C Anemophily
D Hydrophily

Answer: Entomophily
3 A dioecious flowering plant prevents
A Geitonogamy and xenogamy
B Autogamy and xenogamy
C Autogamy and geitonogamy
D Cleistogamy and xenogamy

Answer:Autogamy and geitonogamy
4 Testa of a seed is produced from
A hilum
B ovary wall
C funicle
D outer integument of ovule

Answer:outer integument of ovule
5 Endosperm is formed during the double fertilization by
A one polar nuclei and one male gamete
B two polar nuclei and one male gamete
C two polar nuclei and two male gamete
D ovum and male gamete

Answer: two polar nuclei and one male gamete
6 One advantage of cleistogamy is
A it leads to the greater genetic diversity
B seed set is not dependent on pollinators
C seed dispersal is more efficient and widespread
D each visit of a pollinator result in transfer of hundreds of pollen grains

Answer: seed set is not dependent on pollinators
7 Pollen grains are shed at which stage?
A Two celled
B Three celled
C Single celled
D Usually at two celled, but sometimes three celled

Answer: Usually at two celled, but sometimes three celled
8 Filiform apparatus is characteristic of
A egg
B synergids
C antipodal cells
D anther wall

Answer:synergids
9 An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is
A hemitropous
B anatropous
C orthrotropous
D campylotrophous

Answer:hemitropous
10 The egg apparatus of angiosperm comprises
A an egg cell and two antipodals
B an egg cell and the central cell
C an egg cell and the two polar nuclei
D an egg cell and two synergids

Answer: an egg cell and two synergids
11 Fusion of male gamete with polar nuclei of embryosac is known as
A Pollination
B Embrogeny
C Triple fusion
D Double fertilization

Answer:Triple fusion
12 Study the following statements and select the correct one.
A. Tapetum nourishes the developing pollen grains
B. Hilum represents the junction between ovule and funicle
C. In aquatic plants such as water hyacinth and water lily, pollination occurs by water.
D. The primary endosperm nucleus is triploid.
A A and b are correct but C and D are incorrect
B A, B and D are correct but C is incorrect
C B, C and D are correct but A is incorrect
D A and D are correct but B and C are incorrect

Answer: A, B and D are correct but C is incorrect
13 The entry of pollen tube into the ovule through micropyle is called
A mesogamy
B anisogamy
C porogamy
D chalazogamy

Answer:porogamy
14 Jurassic period is about
A 265 million years back
B 165 million years back
C 65 million years back
D 365 million years back

Answer:165 million years back
15 To which one of the following the genus Williamsonia belongs?
A cycadales
B coniferales
C cycadales
D bennittitales

Answer: bennittitales
16 The pollen-bearing organs of Lyginopteris belong to
A Cycadeoidea
B Crosstheca
C Calymmaatotheca
D Williamsonia

Answer:Crosstheca
17 ‘Fossil beehives’ is the name associated with fossil
A Cycads
B Coniferales
C Pteridophytes
D Ginkgoales

Answer:Ginkgoales
18 The leaves of Zygopteridaceae belong to the genus
A Callixylon
B Etapteris
C Callixylon
D Ptilophyllum

Answer: Ptilophyllum
19 Nipaniophyllum belongs to
A Benettitales
B Filicales
C Cordaitales
D Pentoxylales

Answer:Pentoxylales
20 Baragwanathia- a fossil pteridophyte was discovered from
A Rhynie chert bed of Scotland
B Raj Mahal hills of Bihar
C Silurian beds of Victoria, Australia
D Mudstones near Giloba, Newyork

Answer: Silurian beds of Victoria, Australia
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