MCQs......... Revise and have a fast check on your lessons.
Topic: Reproduction in Flowering Plants
1. Which of the following is not an out breeding device?
a) Hermaphrodite flowers
b) self incompatibility
c) Production of monoecious flowers
d) Non synchronisation of pollen release and stigma receptivity
2. The type of flower shown in the diagram is-
a) Hypogynous
b) Epigynous
c) Perigynous
d) None of these
3. The transfer of pollengrains from the anther to the stigma of the different flower of the same plant is called-
a) Autogamy
b) Geitonogamy
c) Xenogamy
d) Polygamy
4. Light, non sticky pollengrain and well exposed stamens are the charecteristics of which of the
following.
a) Anemophilly
b) Hydrophilly
c) Zoophilly
d) Chiropterophilly
5. PEN is formed from the fusion of -
a) Two polar nuclei
b) Two antipodal cells
c) Male gamete and polar nuclei
d)female gamete and polar nuclei
6. The residual persistent nucellus present in some seeds are called-
a) Perisperm
b) Pericarp
c) Pericycle
d) Perichondrium
7. The function of filiform apparatusin reproduction is to -
a) provide nutrition to the female gamete
b) stimulate division of male gamete.
c) Guide the pollen tube into the synergid
d) None of these
8. The flowers with exposed anthers and stigma are called-
a) Unisexual flowers
b) Bisexual flowers
c) Cleistogamous flowres
d) Chasmogamous flowers
9. Scutellum is -
a) cotyledon in monocots
b) Endosperm in monocots
c) Cotyledon in dicots
d) Endosperm in dicots
10. Apomixis is the mechanism to produce
a) Fruits without fertilisation
b) Organisms without fertilisation
c) Seeds without fertilisation
d) None of these.
No comments:
Post a Comment