10 MCQ on Plant Science for various Agriculture Exams✅ Part -65

1. In which of the following plant species can self-pollination never occur either naturally or artificially?
   (a) Zea mays
   (b) Gossypium hirsutum
   (c) Carica papaya
   (d) Saccharum officinarum

2. What will happen if several fruitlets (seeds) of a developing strawberry are removed at random?
   (a) Seedless fruit will be formed.
   (b) Fruit will not develop at all.
   (c) Normal fruit with less seeds is formed.
   (d) A disturbed fruit with underdeveloped portions is formed.

3. In angiosperms, the egg is
   (a) Completely surrounded by a wall.
   (b) Surrounded by a wall only at the micropylar end.
   (c) Surrounded by a wall only at the chalazal end.
   (d) Devoid of wall.

4. The main advantage of vegetative propagation is that it
   (a) Is quite easy.
   (b) Is reliable.
   (c) Produces genetically uniform progeny.
   (d) Produces healthy, disease-resistant plants.

5. Dichogamy refers to
   (a) Male and female sex organs maturing at the same time.
   (b) Male and female sex organs maturing at different times.
   (c) Anthers are sterile whereas ovules are fertile.
   (d) Ovules are sterile whereas anthers are fertile.

6. Which one of the following methods requires two genetically variable individuals to produce the progeny?
   (a) Cutting
   (b) Layering
   (c) Gootee
   (d) Bud grafting

7. An ovule which becomes curved so that the nucellus and embryo sac lie at right angle to the funicle is
   (a) Orthotropous
   (b) Anatropous
   (c) Hemitropous
   (d) Campylotropous

8. Hypohydrophily occurs in
   (a) Vallisneria
   (b) Elodea
   (c) Ceratophyllum
   (d) Hydrilla

9. In angiosperms normally after fertilization
   (a) The zygote divides earlier than the primary endosperm nucleus.
   (b) The primary endosperm nucleus divides earlier than the zygote.
   (c) Both the zygote and primary endosperm nucleus divide simultaneously.
   (d) Both the zygote and primary endosperm nucleus undergo a resting period.

10. The term perianth is used when
    (a) Calyx and corolla are not differentiated.
    (b) Calyx and corolla are differentiated.
    (c) Calyx and corolla are free.
    (d) Calyx and corolla are fused.

11. Fleshy buds produced in the axil of leaves, which grow to form new plants when shed and fall on ground, are called
    (a) Bulbs
    (b) Bulbils
    (c) Tubers
    (d) Offsets