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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.
| 501. |
Obturator which helps in fertilization is outgrowht o:A. Pollen tubeB. PlacentaC. FunicleD. Pollen grains |
| Answer» Correct Answer - B | |
| 502. |
Pollen tube when enter throgh integument, it refers to:A. ApogamyB. PorogamyC. MesogamyD. Chalazogamy |
| Answer» Correct Answer - C | |
| 503. |
Male gamete in angiosperm is produced by:A. Generative cellB. Microspore cellC. Vegetative cellD. Tube cell |
| Answer» Correct Answer - A | |
| 504. |
Double fertilization is fusion of:A. Two eggsB. Two eggs and polar nuclei with pollen nucleiC. One male gamete with egg and other with synergidD. One male gamete with egg and other with secondary nucleus |
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Answer» Correct Answer - D Double fertilization is fusion of one male gamete with egg and other with secondary nucleus. |
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| 505. |
Double fertilization is fusion of:A. Two eggsB. Two eggs and polar nucleiC. One male gamete with egg and other with synergidsD. One male gamete with egg and other with secondary nucleus |
| Answer» Correct Answer - D | |
| 506. |
Endosperm transplant technique is applied in culure of:A. OvaryB. EmbryoC. OvuleD. None of these |
| Answer» Correct Answer - B | |
| 507. |
Rare and intergeneric hybrid embryo grows well:A. Inside ovule of mother plantB. In suitable nutrient rich culture mediumC.D. Outside the seed coat |
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Answer» Correct Answer - B Rate and intergeneric hybrid embryo grows well in culture medium where they get all required nutrients auxins, cytokinins and natural extracts during its growth, development and differentiation. Culture medium provides more hospitable environment than the ovule or ovary. |
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| 508. |
Intergeneric hybrids can be obtained with the help of:A. MicropropagationB. CryopreservationC. Somatic hybridizationD. Protoplast culture |
| Answer» Correct Answer - C | |
| 509. |
What is the function of germ poreA. Release of male gametesB. Emergence of radicleC. Absorption of water for seed germinationD. Initiation of pollen tube |
| Answer» Correct Answer - D | |
| 510. |
Double fertilization is essential for formation ofA. SeedB. FruitC. MegasporeD. Endosperm |
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Answer» Correct Answer - D Double fertilization results in formation of endosperm. |
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| 511. |
Nitsch was able to get strawberries of different shapes byA. Splitting the ovaryB. Removing the perianthC. Selectively removing some carpelsD. Inserting an alcohol dipped needle into ovary |
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Answer» Correct Answer - C Nitsch was able to get strawberries of different shapes by selectively removing some carpels. |
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| 512. |
In which of the following plant the number of ovules in an ovary is one ?A. mangoB. orchidsC. water melonD. papaya |
| Answer» Correct Answer - A | |
| 513. |
Third integument is found in ovules of:A. NutmegB. LitchiC. Asphodelus and RicinusD. All of these |
| Answer» Correct Answer - D | |
| 514. |
Bitegmic ovules are found in:A. PisumB. CycasC. PinusD. None of these |
| Answer» Correct Answer - A | |
| 515. |
2-celled pollen grains of angiosperm represents:A. MicrosporesB. Partially developed male gametophyteC. Mature male gametophyteD. Male gametangium |
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Answer» Correct Answer - B 2-celled pollens represent a partially developed male gametophyte. The mature male gametophyte is only 3-celled. |
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| 516. |
Carpel is homologous to:A. MegasporangiumB. MegasporeC. MegagametophyteD. Megasporophyll |
| Answer» Correct Answer - D | |
| 517. |
The ploidy level is not the same in:A. Integument and nucellusB. Root tip and shoot tipC. Secondary nucleus and endospermD. Antipodals and syndergids |
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Answer» Correct Answer - C Secondary nucleus is dipoloid, whereas, the endosperm nucleus is tripoid in nature of all typical 7-celled embryo sacs. |
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| 518. |
If 2n=12, the number of chromosomes in nuclellus, integrument and egg cell would be:A. 12,12,6B. 12,18,24C. 12,12,12D. 12,12,24 |
| Answer» Correct Answer - A | |
| 519. |
If 2n=24, then 18 chromosomes will be found in:A. Integument and nucellusB. Body cell and tube celC. synergids and antipodalsD. None of the above |
| Answer» Correct Answer - D | |
| 520. |
In ovule, meiosis occurs in:A. IntegumentB. NucellusC. MegasporesD. Megaspore mother cells |
| Answer» Correct Answer - D | |
| 521. |
In a two-celled pollen:A. Generative cell is largerB. Vegetative nucleus is largerC. Vegetative cell is largerD. Body cell is larger |
| Answer» Correct Answer - C | |
| 522. |
Male gametes are always non-motile in:A. All red algae and angiospermsB. In all gymnospermsC. All spermatophytes onlyD. In angiosperms only |
| Answer» Correct Answer - A | |
| 523. |
In the life cycle of angiosperms, meiosis occurs when:A. Flowers formation beginsB. Pollens are to be producedC. Ovules are fertilizedD. Secondary nucleus is produced |
| Answer» Correct Answer - B | |
| 524. |
Most resistant stage in the life cycle of angiosperms is its:A. Seeding stageB. Seed stageC. Flowering stageD. Fruiting stage |
| Answer» Correct Answer - B | |
| 525. |
Stigma acts asA. Receptive organ for pollensB. An organ to promote the germination of only desired pollensC. An organ to discourage germination of undesired pollensD. All of the above |
| Answer» Correct Answer - D | |
| 526. |
In a maize comb, the silky hairs represent:A. Long styleB. Long style with feathery stigmaC. Involucre of bractsD. Hairs or pappus |
| Answer» Correct Answer - B | |
| 527. |
Parthenium or carrot grass has become ubiquitous in occurrence and causes pollen allergy. Parthenium came into India as a contaminant with imprtedA. WheatB. RiceC. CarrotD. Rose |
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Answer» Correct Answer - A Parthenium or carrot grass has become ubiquitous in occurrence and causes pollen allergy. Parthenium came into India as a contaminant with imported wheat. |
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| 528. |
Double fertililzation is exhibited byA. GymlnospermsB. AlgaeC. FungiD. Angiosperms |
| Answer» Correct Answer - D | |
| 529. |
A dioecious flowering plant prevents bothA. autogamy and getitonogamyB. autogamy and geitonogamyC. geitonogamy and xenogamyD. cleistrogamy and xenogamy |
| Answer» Correct Answer - B | |
| 530. |
Offesets are produced byA. ParthenogenesisB. ParthenocarpyC. Mitotic divisionsD. Meiotic divisions |
| Answer» Correct Answer - C | |
| 531. |
Which of the following has proved helpful in preserving pollen of fossilsA. SporopolleninB. Oil contentC. Cellulose intineD. Pollenkitt |
| Answer» Correct Answer - A | |
| 532. |
Attractants and reward are required forA. EntomophilyB. HydrophilyC. CleistogamyD. Anemophily |
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Answer» Correct Answer - A Attractants and rewards are required for entomophily (pollination by insects). |
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| 533. |
Megasporophyll of Pinus is equivalent to angiospermicA. carpelB. ovuleC. pedicelD. placentra |
| Answer» Correct Answer - A | |
| 534. |
The megasporangium of the angiosperms on maturation gives rise toA. fruitB. seedsC. embryoD. cotyledons |
| Answer» Correct Answer - B | |
| 535. |
Apomixis isA. formation of seeds by fusion of gametesB. formation of seeds without syngamy and meiosisC. formation of seeds with syngamy but no meiosisD. None of the above |
| Answer» Correct Answer - B | |
| 536. |
Primary endosperm nucleus is formed by the fusion ofA. 2 polar nuclei + 1 synergid cell nucleusB. 1 polar nucleus +1 antipodal cell nucleus +1 synergid cell nucleusC. 2 polar nuclei +1 male gamete nucleusD. 2 antipodal cell nuclei + 1 male gamete nucleus |
| Answer» Correct Answer - C | |
| 537. |
Which of the following correctly represent the labelling of A, B, C and D w.r.t given diagram. A. A-Thalamus, B- Seed C-Endocarp, D-MesocarpB. A-Seed, B-Thalamus, C-Endocarp, D- MesocarpC. A-Endocarp, B-Mesocarp, C-Thalamus, D- SeedD. A-Thalamus, B- Seed C-Mesocarp, D-Endocarp |
| Answer» Correct Answer - A | |
| 538. |
What is the correct sequence in the formation of female gametophyte in angiosperms?A. Nucellus, megapore tetrad, megaspore mother cell, megaspore, female gametophyteB. Megaspore tetrad, nucellus, megaspore mother cell, megaspore, female gametophyteC. Nucellus, megaspore mother cell, megaspore tetrad, megaspore, female gametophyteD. Megaspore mother cell, megaspore tetrad, megaspore, nucellus, female gametophyte |
| Answer» Correct Answer - C | |
| 539. |
Geitonogamy involvesA. Fertilization of a flower by the pollen from another flower of the same plantB. Fertilization of a flower by the pollen from a the same flowerC. Fertilization of a flower by the pollen from a flower of another plant in the same population.D. Fertilization of a flower by the pollen from a flower of another plant belonging to a distant population. |
| Answer» Correct Answer - A | |
| 540. |
Select the correct statement from the followingA. hanging drop method as in vivo germination of pollen grainB. obturator directs the growth of pollen tibe twoards mircropyle of seedC. there are many embryos of different sized and shapes in the seeds of orangeD. embryo arises parthenogentically form the dipoid egg in adventive embryony |
| Answer» Correct Answer - A | |
| 541. |
Choose the correct option from the following I Dehydration and dormanyc of mature seed are crucial for seed storage ltgtbrgt II Seed fo lupinus arcticus is the oldest one which geminated after 2000 year III orchid seed is one of largest seed in plant kingdom IV seeds of parastic plants orobanche and stiga are tiny seedsA. I,II are correct but III IV are incorrectB. I,IV are correct but II ,III are incorrectC. III ,IV are correct but I,II are incorrectD. II ,III are correct but I,IV are incorrect |
| Answer» Correct Answer - A | |
| 542. |
Which of the followng is a partheocarpic fruit ?A. bananaB. appleC. strawberryD. pomegranate |
| Answer» Correct Answer - A | |
| 543. |
Adventure polyebryony is common inA. wheatB. appleC. mangoD. orobanche |
| Answer» Correct Answer - C | |
| 544. |
Perispermic seeds areA. castor sunflowerB. black pepper beetC. maize beetD. barely maize |
| Answer» Correct Answer - B | |
| 545. |
Gynoecium of a flower may be apocarpous or syncarpous. Explain with the help of an example each. |
| Answer» Term apocarbous refers to presence of more than two free carpels - e.g., Rosa. Term syncarpous refers to presence of more than two fused carpel . e.g., Datura. | |
| 546. |
From among the sets of terms given below, identify those that are associated with the gynoecium.A. Stigma , ovule , embryo sac, placentaB. Thalamus, pistil , style , ovuleC. Ovule, ovary, tapetum, embryos acD. Egg, integument , embryo sac, nucellus |
| Answer» Correct Answer - A | |
| 547. |
From among the sets of terms given below, identify those that are associated with the gynoecium.A. Stigma, ovule, embryo sac, placentaB. Thalamus, pistil, style, ovuleC. Ovule, ovary, embryo sac, tapetumD. ovule, stamen, ovary, embryo sac |
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Answer» Correct Answer - A Stigma is a part of pistil on which pollen grain lands. Each ovary may have many ovules, which have embryo sacs in them. Placenta is a tissue/ridge inside ovary to which ovules are attached. Thalamus is the terminal part of the axis of flower which bears all foral appendages. Tapetum is the innermost layer of microsporangium while stamen is part of androecium. |
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| 548. |
Functional megaspore in an angiosperm develops intoA. EndospermB. Embryo sacC. EmbryoD. Ovule |
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Answer» Correct Answer - B Functional megaspore in an angisperm develops into embryo sac. |
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| 549. |
From among the sets of terms given below, identify those that are associated with the gynoecium.A. Stigma, ovule, embryosac, placentaB. Thalamus, pistil, style, ovuleC. Ovule, ovary, embryosac, TapetumD. Ovule, stamen, ovary, embryosac |
| Answer» Correct Answer - a | |
| 550. |
Select the incorrect statement regarding angiospermA. Megaspore is diploidB. Megaspore is the first cell of female gametophyteC. The pollen grain is the first cell of male gametophyteD. All of the above |
| Answer» Correct Answer - A | |