Download PDF
Free download in PDF Sexual Reproduction in Flowering Plants Objective Type Questions with Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
Functional megaspore in an angiosperm develops into
[A]
Endosperm
[B]
Embryo
[C]
Embryo-sac
[D]
Ovule
(2)
Rewards and attractants are required for
[A]
Entomophily
[B]
Cleistogamy
[C]
Anemophily
[D]
Hydrophily
(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
(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
(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
(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
(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
(16)
The pollen-bearing organs of Lyginopteris belong to
[A]
Cycadeoidea
[B]
Crosstheca
[C]
Calymmaatotheca
[D]
Williamsonia
(17)
‘Fossil beehives’ is the name associated with fossil
[A]
Cycads
[B]
Coniferales
[C]
Pteridophytes
[D]
Ginkgoales
(18)
The leaves of Zygopteridaceae belong to the genus
[A]
Callixylon
[B]
Etapteris
[C]
Callixylon
[D]
Ptilophyllum
(19)
Nipaniophyllum belongs to
[A]
Benettitales
[B]
Filicales
[C]
Cordaitales
[D]
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
Take Mock Tests