InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A particle species of plant produces light, non sticky pollen in large numbers and its stigmas are long and feathery these modification facilitate pollination byA. insectsB. WaterC. WindD. Animals |
| Answer» Correct Answer - C | |
| 2. |
In the embryos of a typical dicot and a grass, true homologous structures areA. Coleorhiza and coleoptileB. Coleoptile and scutellumC. Cotyledons and scutellumD. Hypocotyl and radicle |
| Answer» Correct Answer - C | |
| 3. |
The phenomenon observed in some plants wherein parts of the sexual apparatus is used for forming embryos without fertilization is calledA. ParthenocarpyB. ApomixisC. Vegetative propagationD. Sexual reproduction |
| Answer» Correct Answer - B | |
| 4. |
Pollination characteristically occurs inA. Angiosperms and fungiB. Angiosperms and GymnospermsC. Pteridophytes and angiospermsD. Bryophytes and angiosperms |
| Answer» Correct Answer - B | |
| 5. |
In which one of the following would you expect to find glyoxysomesA. Endosperm of wheatB. Endosperm of castorC. Palisade cells in leafD. Root hairs |
| Answer» Correct Answer - B | |
| 6. |
The given figure the self incompatibility the genotypes of embryo and endosperms are A. `{:("Embryo",,"Emdosperm"),(S_(1)S_(3)S_(3)S_(4),,S_(1)S_(1)S_(3)S_(4)S_(4)S_(3)):}`B. `{:("Embryo",,"Emdosperm"),(S_(1)S_(1),,S_(1)S_(3)S_(4)):}`C. `{:("Embryo",,"Emdosperm"),(S_(1)S_(1)S_(3)S_(4),,S_(3)S_(4)S_(4)):}`D. `{:("Embryo",,"Emdosperm"),(S_(4)S_(4),,S_(3)S_(4)S_(4)S_(1)S_(1)S_(3)):}` |
| Answer» Correct Answer - A | |
| 7. |
Perisperm differs from endosperm inA. Its formation by fusion of secondary nucleus with several spermsB. Being a haploid tissueC. Having no reserve foodD. Being a diploid tissue |
| Answer» Correct Answer - D | |
| 8. |
Which of the following floral parts forms pericarp after fertilizationA. NucellusB. Outer integumentC. Ovary wallD. Inner integument |
| Answer» Correct Answer - C | |
| 9. |
Ruminate endosperm is commonly found in seeds ofA. CruciferaeB. CompositaeC. EuphorbiaceaeD. Annonaceca (Areca nut) |
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Answer» Correct Answer - D The endosperm that shows irregular or uneven surface contour is called ruminate endosperm Ruminate or convoluted endosperm occurs in Areca (Batelnut) and Passiflora |
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| 10. |
Development and formation of pollen grains in anther of the stamen is known asA. PollinationB. FertilizationC. MicrosporogenesisD. Megasporogenesis |
| Answer» Correct Answer - C | |
| 11. |
Collar like outgrowth arising from the base of ovule and forming is a sort of third integument is known asA. ComaB. CaruncleC. ArilD. Operaculum |
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Answer» Correct Answer - C Aril is a collar like outgrowth from the base of the ovule and forms third integument it is present sometimes as in Litchi and Asphodelus or in the form of caruncle in Ricinus (Castor). |
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| 12. |
In plants in nature, autogamy is avoided since the seeds producedA. Are fewer in numberB. Do not germinate successfullyC. Do not produce healthy plantsD. All the above |
| Answer» Correct Answer - D | |
| 13. |
When vegetative cell of zygote form embryo it is calledA. AposporyB. ApomixisC. Diploid polyembryonyD. Adventive polyembryony |
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Answer» Correct Answer - D Growth of diploid nuclear or integument cells into embryos (adventive polyembryony) e.g., Mango |
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| 14. |
If you want to develop hybrid seeds within a bisexual flower which of the following parts need to be removed from the same flowerA. StigmaB. OvaryC. AntherD. Oviduct |
| Answer» Correct Answer - C | |
| 15. |
In anther culture, the androgenic haploid plants are obtained fromA. Young pollen grainB. Connective tissueC. Anther tapetumD. Anther wall |
| Answer» Correct Answer - A | |
| 16. |
Haploids can be obtained fromA. Pollen grainsB. Root apexC. Shoot apexD. Embryo |
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Answer» Correct Answer - A Haploids can be obtained by culturing pollen grains Only pollen grains are haploids. Root apex, shoot apex and embryo are diploid. |
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| 17. |
In anther culture some diploid plants were reported with haploids. They have evolved fromA. Prothallial cell of pollen grainB. Generative cell of pollen grainC. Cell of anther wallD. Exine of pollen grain |
| Answer» Correct Answer - C | |
| 18. |
Triple fusion in angiosperm is the fusion of second sperm withA. Antipodal cell and one synergid cellB. Two antipodal cellsC. Two synergids cellsD. Two polar nuclei |
| Answer» Correct Answer - D | |
| 19. |
Egg apparatus of angiosperm consists ofA. One egg cell and two synergidsB. One egg cell 2 synergids 3 antipodalsC. 3 antipodals onlyD. Secondary nucleus and egg cell |
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Answer» Correct Answer - A Egg apparatus of angiosperm is 3 celled it has one egg cell and two synegids on either side of egg cell 3 antiipodal are present on chalazal side. The secondary nucleus is binucleate, is present in the centre of embryo sac. |
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| 20. |
Germination of pollen grain on the stigma isA. AutogamyB. In vivo germinationC. In vitro germinationD. None of these |
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Answer» Correct Answer - B Germination of pollen completes on stigma i.e in vivo it means in natural conditions or within the cell. |
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| 21. |
Arrange the following in the order of their location from periphery to centre in the entire dicotyledonous plant body (i) Fusiform cells (ii) Trichoblasts (iii) colloytes tyloses (iii) collocytes (iv) Tyloses The correct sequence isA. IV, I, II, IIIB. II, III, I, IVC. III, II, I, IVD. I, IV, III, II |
| Answer» Correct Answer - B | |
| 22. |
Which of the following statements is not correctA. Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the styleB. Insects that consume pollen or nectar without bringing about pollination are called `pollen//nectar` robbersC. Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistilD. Some reptiles have also been reported as pollinators in some plant species |
| Answer» Correct Answer - A | |
| 23. |
Crassinucellate ovule showsA. Absence of nucellusB. Well development nucellusC. Partially developed nucellusD. III developed nucellus |
| Answer» Correct Answer - B | |
| 24. |
Choose the right option in which all the alphabets A, B, C, D and E are correctly identified A. `{:(" A B C D E "),("Antipodal cells Secondary nuclei Chalaza Stigma Style"):}`B. `{:(" A B C D E "),("Antipodal cells Secondary nuclei Stigma Chalaza Style"):}`C. `{:(" A B C D E "),("Antipodal cells Secondary nuclei Style Stigma Chalaza"):}`D. `{:(" A B C D E "),("Antipodal cells Secondary nuclei Stigma Style Chalaza"):}` |
| Answer» Correct Answer - D | |
| 25. |
Tegmen develops fromA. Outer integumentB. Inner integumentC. ChalazaD. Funicle |
| Answer» Correct Answer - B | |
| 26. |
What is the function of germ poreA. Emergence of radicleB. Absorption of water for seed germinationC. Initiation of pollen tubeD. Release of male gametes |
| Answer» Correct Answer - C | |
| 27. |
The ovary after fertilization is converted intoA. EmbryoB. EndospermC. FruitD. Seed |
| Answer» Correct Answer - C | |
| 28. |
An example of a naturally occurring parthenocarpic fruit isA. GuavaB. MangoC. BananaD. Apple |
| Answer» Correct Answer - C | |
| 29. |
For the formation of tetrasporic embryosac, how many megaspre mother cells are requiredA. 1B. 2C. 3D. 4 |
| Answer» Correct Answer - A | |
| 30. |
Animal vectors are required for pollination inA. VallisneriaB. MulberyC. CucumberD. Maize |
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Answer» Correct Answer - C Maize mulberry `rarr` wind pollination Vallisneria `rarr` Hydrophily |
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| 31. |
Female gametophyte of a typical dicot at the time of fertilization isA. 8 celledB. 7 celledC. 6 celledD. 4 celled |
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Answer» Correct Answer - B In mature female gametophyte atipodal cells, 2 synergids 1 egg and 1 diploid secondary nucleus are present |
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| 32. |
The process of fusion between male nucleus and egg nucleus is called asA. SyngamyB. Triple fusionC. Double fertilizationD. Conjugation |
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Answer» Correct Answer - A Syngamy is fusion of one of the two male gametes with egg to produce diploid zygote (oospore). |
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| 33. |
when the pollen tube enters through the micropyle it is termed asA. ChalazogamyB. MesogamyC. PorogamyD. None of the above |
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Answer» Correct Answer - C porogamy is the most common way in angiosperms e.g. Lily |
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| 34. |
Double fertilization was discovered byA. Karl SchnarfB. P. MaheswariC. S.G. NawaschinD. B.G.L Swamy |
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Answer» Correct Answer - C Double fertilization was discovered by Nawaschin (1898) in Fertilization and Lillum |
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| 35. |
The phenomenon of syngamy (fertilization) in angiosperms was discovered byA. SvedbergB. StrasburgerC. NawaschinD. Coulter and Chamberlin |
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Answer» Correct Answer - B In angiosperms, male gametes reach the female gamete with the help of pollen tube (Strasburger 1884) |
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| 36. |
Fertilization of egg takes place insideA. AntherB. StigmaC. Pollen tubeD. Embryo sac |
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Answer» Correct Answer - D Because egg is the part of embryo sac. |
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| 37. |
Siphonogamy in angiosperm meansA. Tube like male gametsB. Motile male gametesC. Male gametes produced in a tubeD. Male gametes ae carried in a tube |
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Answer» Correct Answer - D In seed plants fertilization is called Siphonogamy because the male gametes are brought to the egg containing female gametophyte by a pollen tube. |
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| 38. |
A plant radised from a single germinating pollen grain under cultural conditions is called aA. Haploid plantB. Diploid plantC. Tetraploid plantD. Polyploid plant |
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Answer» Correct Answer - A Guha and Maheswari reported culture of androgenic haploids Datura innoxia. |
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| 39. |
The coconut water and the edible part of coconut are equivalent to or the morphological nature of the edible part of coconut isA. EndospermB. EndocarpC. MesocarpD. Embryo |
| Answer» Correct Answer - A | |
| 40. |
Assertion : Megaspore mother cell undergoes meiotic division Reason : All four megaspores form female gametophyte.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason is falseD. If both the assertion and reason are false |
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Answer» Correct Answer - C On hypodermal nucellar cell of the micropylar region differentiates into the sporogenous cell. It forms a diploid megaspore mother cell or megasporocyte. The megaspore mothe cell or megasporocyte. The megaspore mother cell or megasporocyte. The megaspore mother cells undergo meiosis and forms a row of four haploid megaspores. Only the chalazal megaspore remains functional megaspore enlarges and gives rise to female gametophyte, also called embryo sac. |
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| 41. |
Megaspores are produced from the megaspore monther cells afterA. Mitotic divisionB. Formation of a thick wallC. DifferentiationD. Meiotic division |
| Answer» Correct Answer - D | |
| 42. |
In angiosperms, functional megaspore developes into or The microscopic structure in flower that contains polar nuclei isA. EndospermB. Pollen sacC. Embryo sacD. Ovule |
| Answer» Correct Answer - C | |
| 43. |
Pollinia is found in which of the following plant familyA. AsteraceaeB. MyrtaceaeC. MalvaceaeD. Asclepiadaceae |
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Answer» Correct Answer - D In Asclepiadaceae family all microspores of a sporangium form a single body called pollinium. |
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| 44. |
If diploid chromosome number in a flowering plant is 12, then which one of the following will have only 6 chromosomesA. EndospermB. Leaf cellsC. CotyledonsD. Synergids |
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Answer» Correct Answer - D Synergids are formed by megaspore which is a haploid structure thus synergids are haploid and possess 6 chromosomes. |
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| 45. |
The pollen grain isA. An immature male gametophyteB. A mature male gametophyteC. Partially development male gametophyteD. Last stage of male gametophyte |
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Answer» Correct Answer - C Pollen grain is partially developed male gametophyte because the rest of the development is completed on stigma when pollen grains start to germinate and produces pollen tube having two male nuclei. |
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| 46. |
Which part of the reproductive structure produces both enzymes and hormonesA. ArchegoniumB. Middle layerC. TapetumD. Endothecium |
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Answer» Correct Answer - C Its chief function is the production of enzymes, and hormones (IAA) and secretion of nutrients for developing pollens. |
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| 47. |
In monocots, male gametphyte isA. microporeB. MegasporeC. TetradD. Nucellus |
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Answer» Correct Answer - A In monocots, male gametophyte is formed in pollen grain or microspore. |
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| 48. |
What does the filiform apparatus do at the entrance into or Function of filiform apparatus is toA. If brings about opening of the pollen tubeB. It guides pollen tube from a synergid to eggC. It helps in the entry of pollen tube into a synergidD. It prevents entry of more than pollen tube into the embryo sac |
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Answer» Correct Answer - C Filiform apparatus, present in synergids, play an important role in guiding the pollen tube into the synergid. |
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| 49. |
The odd one isA. MicrosporeB. Embryo sacC. NucellusD. Pollen grain |
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Answer» Correct Answer - D Pollen grains are not part of ovule |
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| 50. |
In plants meiosis occurs inA. AntherB. Root tipC. CambiumD. Pollen grain |
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Answer» Correct Answer - A Meiosis occurs in pollen mother cells of anther |
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