1. The pistil in flower encloses
a) One ovule
b) Only two ovules
c) Three ovules
d) One too many ovules
Explanation: One too many ovules
2.Embryo sacs in angiosperms is
a) Male gametophyte
b) Well-developed female gametophyte
c) Highly reduced female gametophyte
d) Well-developed female sporophyte
Explanation: Highly reduced female gametophyte
3. Embryo sac of angiosperms posses
a) Egg apparatus
b) Synergids
c) Antipodal
d) All of these
Explanation: All of these
4. Egg apparatus of angiosperms contain
a) One egg cell
b) Two synergids
c) Both (a) and (b)
d) Two antipodals
Explanation: Both (a) and (b)
5. The cells of embryo sac are
a) Diploid
b) Haploid
c) May be haploid or diploid
d) None of these
Explanation: The cells of embryo sac are haploid.
6. Diploid secondary nucleus in embryo sac of angiosperm is the product of
a) Fusion of two synergid cells
b) Fusion of two antipodal cells
c) Fusion of two polar nuclei
d) Fusion of egg cell and antipodal cell
Explanation: Fusion of two polar nuclei
7. The pistil in angiosperm is made up of
a) Ovary
b) Stigma
c) Style
d) All of these
Explanation: All of these
8. Ovary is the characteristic feature of
a) Gymnosperms
b) Angiosperm
c) Pteridophyte
d) All of these
Explanation: Angiosperm
9.In double fertilization
a) Male gamete fuses with egg cell to form zygote.
b) Male gamete fuses with diploid endosperm nucleus to produce triploid primary endosperm
nucleus.
c) Both (a) and (b)
d) Fertilization takes place in two plants simultaneously.
Explanation: Both (a) and (b)
10. Synergids and antipodals
a) Develop into new plants
b) Are diploid
c) Degenerate after fertilization
d) Are produced in male gametophyte
Explanation: Degenerate after fertilization
11. Fruit formation in angiosperm takes place by
a) Development of ovule after fertilization
b) Development of ovary after fertilization
c) Axillary bud
d) Terminal bud
Explanation: Development of ovary after fertilization
12. Double fertilization is the unique characterisitic feature of
a) Angiosperm
b) Gymnosperm
c) Pteridophyte
d) Dicotyledons only
Explanation: Double fertilization is the unique characterisitic feature of angiosperm.
13. Zygote after multiplication in angiosperm develop in
a) Endosperm (n)
b) Embryo (n)
c) Endosperm
d) Embryo (2n)
Explanation: Embryo (2n)
14. Endosperm in angiosperm is formed
a) Before fertilization
b) After fertilization
c) Vary from species to species
d) All of these
Explanation: Endosperm in angiosperm is formed after fertilization
15. Meiosis in plants can take place in
a) Only haploid species
b) Only diploid species
c) Both in haploid as well as diploid species
d) None of these
Explanation: Meiosis in plants can take place in only diploid species
16. The haploid plant body produces _______ and is referred to as _______
a) spores, sporophyte
b) gametes, gametophyte
c) zoospores, zoosporangia
d) conidia, conidiophores
Explanation: The haploid plant body produces gametes and is referred to as gametophyte
17. Haploid spore divides by _______ to form haploid plant body
a) Mitosis
b) Meiosis
c) Amitosis
d) Any of these
Explanation: Haploid spore divides by mitosis to form haploid plant body
18.In haplontic life cycle, the sporophytic generation is seen by
a) Well-developed multicellular sporophyte
b) Zygote
c) Embryo
d) None of these
Explanation: Zygote
19. In haplontic life cycle, the zygote divides by
a) Mitosis
b) Meiosis
c) Any of these
d) Amitosis
Explanation: In haplontic life cycle, the zygote divides by mitosis
20. Volvox, spirogyra chlamydomonas come under
a) Haplodiplontic life cycle organism
b) Diplohaplontic organism
c) Haplontic life cycle
d) Diplontic life cycle
Explanation: Volvox, spirogyra chlamydomonas come under haplontic life cycle.