A) To prevent cross-pollination B) To study molecular interactions and gamete fusion C) To eliminate the need for pollen grains D) To increase the size of the seeds
A) High temperatures required for the process B) Confinement of gametes in pollen tubes and embryonic sacs C) The inability of pollen to germinate in vitro D) Lack of adequate nutrients in the laboratory
A) Rose plants B) Orchid plants C) Poppy plants D) Tulip plants
A) Test-tube fertilization B) Artificial pollination C) Hybrid fertilization D) Micro-propagation
A) Microspore B) Carpel C) Embryonic sac D) Ovule
A) Within the ovule B) Within the anther C) Within the pollen tube D) Within the stigma
A) Carpel B) Style C) Micropyle D) Stamen
A) Microsporocyte B) Synergid C) Antipodal D) Megasporocyte
A) Two B) Four C) Three D) One
A) Two B) One C) Four D) Three
A) Eight B) Four C) Ten D) Six
A) Polar nuclei B) Egg nuclei C) Synergid nuclei D) Antipodal nuclei
A) Protection of the ovary B) Attraction and guidance of the pollen tube C) Formation of the seed coat D) Production of sperm cells
A) Pollen grains B) Ovules C) Stigmas D) Carpels
A) In the microsporangia B) In the micropyle C) In the central cell D) In the synergids
A) Polar nuclei B) Antipodal cells C) Microsporocytes D) Megasporocytes
A) Four haploid microspores B) Eight haploid nuclei C) One haploid megaspore D) Two diploid microspores
A) Two sperm cells B) Egg cell and sperm cell C) Generative cell and tube cell D) Two synergid cells
A) Meiosis of the microspore B) Fusion of the synergids C) Mitosis of the generative cell D) Mitosis of the tube cell
A) Spore wall B) Pollen tube C) Ovule D) Stigma
A) Stigma B) Microsporangia C) Anther D) Micropyle
A) Cycadales B) Ginkgoales C) Gnetales D) Coniferales
A) Multinucleate B) Binucleate C) Trinucleate D) Uninucleate
A) It is degraded immediately B) It fuses with the primary zygote C) It fertilizes an additional egg nucleus D) It becomes part of the endosperm
A) Functionally useless B) Provides nutrients to the zygote C) Develops into an embryo D) Forms the seed coat
A) One B) Two C) Three D) Four
A) It becomes a dormant seed B) It grows alongside the primary embryo C) It provides nutrition for the primary embryo D) It is aborted
A) The zygote cytoplasm B) The second fertilization product C) The pollen tube D) The female gametophyte
A) Diploid B) Tetraploid C) Triploid D) Haploid
A) It involves more sperm cells B) It results in polyploidy C) It does not produce separate endosperm D) It happens outside the ovule
A) Angiosperms B) Ferns C) Conifers D) Mosses
A) Anthophyte hypothesis B) Gymnosperm-Angiosperm evolution hypothesis C) Conifer hypothesis D) Gnetophyte-Angiosperm convergence hypothesis
A) Common ancestry B) Recent mutation C) Convergent evolution D) Horizontal gene transfer
A) Bryophytes B) Gymnosperms C) Pteridophytes D) Angiosperms
A) Stigmatic surface B) Micropyle C) Central cell D) Style
A) 3 B) 1 C) 8 D) 7
A) Syngamy B) Germination C) Mitosis D) Triple fusion
A) Form the carpel B) Disperse the pollen C) Protect the pollen grain D) Nourish the developing embryo
A) Pollen grain B) Seed C) Fruit D) Stigma
A) Triple B) Double C) Half D) Equal
A) Fritillaria tenella B) Gnetales C) Arabidopsis thaliana D) Lilium martagon
A) Yes B) No C) Only in Lilium D) Only in flowering plants |