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.
| 701. |
Development of embryo in angiosperm isA. haloblasticB. meroblasticC. eusporangiateD. leptosporangiate |
| Answer» Correct Answer - B | |
| 702. |
Early developmentof embryo in dicots and monocots is similar upto:A. Daid stageB. Quadrat stageC. Globular stageD. Octant stage |
| Answer» Correct Answer - C | |
| 703. |
Endosperm is hemicellulose in Date palm and oily in Coconut. What type of endosperm is found in cereals ?A. ProteinaceousB. StarchyC. FattyD. Cellulosic |
| Answer» Correct Answer - B | |
| 704. |
Match the column and choose the correct option. `{:("Column I", " ""Column II"),("Walnut",(I)"Cotyledon"),("Coconut",(II)"Endosperm"),("Orange",(III)"Endocarp"),("Strawberry",(IV)"Thalamus"):}`A. (i)-(I),(ii)-(II), (iii)-(III), (iv)-(IV)B. (i)-(II),(ii)-(III),(iii)-(I),(iv)-(IV)C. (i)-(III),(ii)-(II),(iii)-(IV),(iv)-(I)D. (i)-(I),(ii)-(II),(iii)-(IV),(iv)-(III) |
| Answer» Correct Answer - A | |
| 705. |
The study of development of embryo is called embryology |
| Answer» Correct Answer - True | |
| 706. |
Assertion : During embryo development in dicots, suspensor serves as the main nutritive tissue for the embryo. Reason : The last cell of the suspensor at the end adjacent to the embryo is known as haustorium.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false |
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Answer» Correct Answer - d During embryo development in dicots, the suspensor cell divides transversely a few times to produce a filamentous suspensor of 6-10 cells. The first cell of suspensor towards the micropylar end becomes swollen and functions as haustorium whereas the last cell of suspensor at the end adjacent of the embryo is knowns as hypophysis . The function of the suspensor is to anchor the embryo to the embryo sac and push it deep into the endosperm so that the embryo lies in a nutritionally favourale enviornment. |
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| 707. |
In coconut the endosperm is free-nuclear endosperm |
| Answer» Correct Answer - True | |
| 708. |
Assertion : Endosperm is a nutritive tissue and it is triploid Reason : Endosperm is formed by fusion of secondary nucleus to second male gamete. It is used by developing embryo.A. If both assertion and reason are true and the reason is a correct explanation of the assertion.B. If both assertion and reason are true but reason is not a correct explanation of the assertion.C. If the assertion is true but reason is false.D. If both the assertion and reason are false. |
| Answer» Correct Answer - A | |
| 709. |
Endoperm is a nutritive tissue |
| Answer» Correct Answer - True | |
| 710. |
Development of microsporangium in angiosperms and gymnosperms is of typical:A. Eusporangiate typeB. Leptosporangiate typeC. Monospric typeD. Tetrasporic type |
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Answer» Correct Answer - A Development of microsporangium in angiosperms and gymnosperms is of eusporangiate type. |
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| 711. |
A non-nutritive structure isA. TapetumB. EndospermC. IntegumentD. Palisade parenchyma |
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Answer» Correct Answer - C Integument is a non-nutritive structure. |
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| 712. |
First pollen plant was produced by:A. Maheshwari and JohriB. Guha and MaheshwariC. Johri and JohriD. Kapil and Johri |
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Answer» Correct Answer - B In India first androgenic haploid was produced by Guha and Maheshwari in Datura innoxia by pollen culture technique. |
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| 713. |
Intra-ovarian fertilization (IOF) means fertilization:A. Outside ovuleB. Outside embryo sacC. By putting pollens directly into ovary wallD. Between male gamete and synergids |
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Answer» Correct Answer - C Intra-ovarian fertilization is used when the stigma create barrier for germination of pollens of other species. The pollens are then put directly into ovary wall giving a small cut and homonal stimulus. |
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| 714. |
The vegetative cell isA. small has large irregualry shapped nucleusB. large has large irregularly shaped nuclesusC. large with spindle shaped nucleusD. samll spindle shaped nuclesu |
| Answer» Correct Answer - B | |
| 715. |
Cryoptreservation means stroing of products inA. liquid nitrogenB. liquid oxygenC. liquid hydrogenD. liquid helium |
| Answer» Correct Answer - A | |
| 716. |
Upon fertilization, while ovule develops into seed, what structure develops from carpel ?A. TegmanB. PerispermC. TestaD. Pericarp (fruit) |
| Answer» Correct Answer - D | |
| 717. |
Identify A and B |
| Answer» Correct Answer - A-Chamogamous flower, B-Cleistogamous flower | |
| 718. |
What is the process known in which a megaspore is formed for the megaspore mother cell. |
| Answer» Correct Answer - Megasporogenesis | |
| 719. |
How many cells and nucleus are present in a developed embryo sac |
| Answer» Correct Answer - 7-cell, 8-nucleus | |
| 720. |
State true or false and correct each flase statement to make it true (i) The ploidy level of female gametophyte is diploid in flowering plants (ii) Integumented megasporangum is also called as ovary (iii) The embryo sac lies at chalazal end of ovule |
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Answer» (i) False ,The ploidy level of gametophyte is n (ii) False Integumented megasporangium is called ovule (iii)False The embryo sac or female gametophyte lies at micropylar end fo ovule |
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| 721. |
Secondary nucleus is polypoid in embryo sac like:A. Polygonum typeB. Allium typeC. Peperomia typeD. All of these |
| Answer» Correct Answer - C | |
| 722. |
Allium type bisporic type female gametophyte is always:A. 8-nucleate and 7-celledB. 16-nucleate and 13-celledC. 8-nucleate and 8-celledD. 4-nucleate and 4-celled |
| Answer» Correct Answer - A | |
| 723. |
Typical bisporic embryo cac is :A. Allium type embryo sacB. Polygonum type embryo sacC. Peperomia type embryo sacD. Drusa type embryo sac |
| Answer» Correct Answer - A | |
| 724. |
Cybrids are used for studing:A. Cytoplasmic charactersB. Nuclear charactersC. MutationD. None of these |
| Answer» Correct Answer - A | |
| 725. |
In angiosperms functional megaspore develops intoA. endospermB. pollen sacC. embryuo sacD. ovule |
| Answer» Correct Answer - C | |
| 726. |
What is common between vegetative reproduction and ApomixisA. Both are applicable to only dicot plantsB. Both bypass the flowering phaseC. Both occur round the yearD. Both produces progeny identical to the parent |
| Answer» Correct Answer - D | |
| 727. |
What is common between vegetative reproduction and ApomixisA. both occur roiund the yearB. both produces progeny identical to the parentC. both are appicable to only dioct plantsD. both bypass the flowering phase |
| Answer» Correct Answer - B | |
| 728. |
What is common between vegetative reproduction and ApomixisA. Both are applicable to only dicot plantsB. Both bypass the flowering phaseC. Both occur round the yearD. Both produce progency identical to the parent |
| Answer» Correct Answer - D | |
| 729. |
Sporopollenin is formed by polymerisationn ofA. Fat and phenolsB. Fat and estersC. Fats and estersD. Carontenoid and esters |
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Answer» Correct Answer - A Sporopolleinin is formed by polymerisation of fat and phenols. |
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| 730. |
The outermost and innnermost wall layers of microsporangium in an anther are respectivelyA. endothecium and tapetumB. epdermis and endoderrilisC. epidermis and middle layerD. epidermis and tapetum |
| Answer» Correct Answer - d | |
| 731. |
If male plantis tetraplid and female plant is diploid, the endosperm will be:A. 6nB. 8nC. 12nD. 4n |
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Answer» Correct Answer - D Endosperm will be 4n. The tetraploid plant contribute 2n male gamete and diploid plant (female plant) contributes two haploid polars to form a secondary nucleus of 2n nature which finally develops into primary endosperm through triple fusion using diploid male gamete. Ploidy level is thus 4n. |
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| 732. |
In polygonum type of embryo sac, the cells areA. HaploidB. DiploidC. Both A and BD. Polyploid |
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Answer» Correct Answer - C In Polygonum type of embryo sac, the cells are haploid and diploid. |
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| 733. |
In the fully organized Polygonum type of embryo sac, what is the ratioof haploid, diploid and triploid nuclei?A. `3:1:3`B. `6:0:1`C. `6:1:0`D. `3:2:3` |
| Answer» Correct Answer - C | |
| 734. |
A polygonum type embryo sac is:A. 7-celled or 8-nucleateB. 8-celled or 7-nucleateC. 8-celled or 8-nucleateD. 7-celled or 7-nucleate |
| Answer» Correct Answer - A | |
| 735. |
The male gamete is x and egg is 3x. The ploidy level in embryo and endosperm will beA. 4s in embryo and 4x in endospermB. 4x in embryo and 7x in endospermC. 4x in embryo and 6x in endospermD. 6x in embryo and 12x in endosperm |
| Answer» Correct Answer - B | |
| 736. |
When a diplid female plantis crossed with a tetraplid male, the ploidy level of endosperm cells in the resulting seed is:A. TetraploidB. PentaploidC. DiploidD. Triploid |
| Answer» Correct Answer - A | |
| 737. |
In an embryo sac, the cells that degenerate after fertilisation areA. synergids and primary endosperm cellB. synergids and antipodalsC. antipodals and primary endosperm cellD. egg and antipodals. |
| Answer» Correct Answer - b | |
| 738. |
In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost isA. calyx, corolla, androecium and gynoeciumB. calyx, corolla, gynoecium and androeciumC. gynoecium, androecium, corolla and calyxD. androecium, gynoecium, corolla and calyx. |
| Answer» Correct Answer - A | |
| 739. |
Polygonum type of embryo sac isA. 8 celledB. 15 nucleatedC. haploidD. exosporic type |
| Answer» Correct Answer - C | |
| 740. |
The number of cells in the Polygonum type of embryo sac which degenerate after fertilizationA. 2B. 7C. 5D. 8 |
| Answer» Correct Answer - C | |
| 741. |
Which of the cells in the Polygonum type of embryo sac which degenerate after fertilizationA. antiploidB. synergidsC. secondary nucleusD. central cell |
| Answer» Correct Answer - D | |
| 742. |
Ploidy level of endosperm varies markedly in embro sac of:A. Monosporic typeB. Bisporic typeC. Tetrasporic typeD. Allium type |
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Answer» Correct Answer - C In tetrasporic type development of embryo sac, different typesof endosperms are produced with varying ploidy levels (from 3n to 15n) |
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| 743. |
Polygonum type 7-celled embryo sac closely resembles to:A. Allium type embryo sacB. Adoxa type embryo sacC. Drusa type embryo sacD. All of these |
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Answer» Correct Answer - D 8-nucleate or 7-celled mature embryo sac is produced in polygonum type monosporic embryo sac, Allium type bisporic embryo sac and Adoxa type tetrasporic embryo sacs. |
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| 744. |
During formation of mature embryo sac from megaspore, the megaspore undergoes:A. two mitotic divisionsB. two meiotic divisionsC. three meiotic divisionsD. three mitotic division |
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Answer» Correct Answer - D In Polygonum type of ovule, the functional haploid megaspore enlarges in size and by means of three successive mitotic divisions, it gives rise to an eight- nucleate embryo sac. |
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| 745. |
In tetrasporic embryo sac, the endosperm is:A. Always tripoidB. Always polypoidC. Only occassionally tripolidD. None of the above |
| Answer» Correct Answer - C | |
| 746. |
During formation of mature embryo sac from megaspore, the megaspore undergoes:A. One meiotic and one mitotic divisonsB. Two meiotic divisioonC. Two mitotic divisionD. Three mitotic divisions |
| Answer» Correct Answer - D | |
| 747. |
In a mature 7-celled or 8-nucleate embryo sac, the ploidy level of secondary nucleus is the same as that of:A. SynergidsB. AntipodalsC. NucellusD. Polars |
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Answer» Correct Answer - C Ploidy level of secondary nucleus is 2n (diploid) which resembles with the ploidy levelof nucellus or integument. |
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| 748. |
Transmission tissue is characteristic feature ofA. Hollow styleB. Solid styleC. Dry stigmaD. Wet stigma |
| Answer» Correct Answer - B | |
| 749. |
Transmission tissue is characteristic feature ofA. Dry stigmaB. Wet stigmaC. Hollow styleD. Solid style |
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Answer» Correct Answer - D Transmission tissue is characteristic feature of solid style. |
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| 750. |
Assertion : Insects visit flowers to gather honey Reason : Attraction of flower prevents the insect from damaging other part of the plant.A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion .B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion .C. If Assertion is true and but the Reason is false.D. If both Assertion and Reason are false. |
| Answer» Correct Answer - D | |