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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.
| 351. |
Coffee plant has chromosome number of 2n in its somatic cells. What is the chromosome number in the edible part of coffee seed?A. nB. 2nC. 3nD. 4n |
| Answer» Correct Answer - B | |
| 352. |
First case of somatic hybridization was reported by:A. CarlsonB. HanningC. LaibachD. Maheshwari |
| Answer» Correct Answer - A | |
| 353. |
Fertilization is synonym withA. AutogamyB. SyngamyC. HomogamyD. Apogamy |
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Answer» Correct Answer - B Fertilization is synonym with syngamy. |
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| 354. |
In the legume seed, food is stored inA. CotyledonsB. EndospermC. PerispermD. Seed coats |
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Answer» Correct Answer - A In the legume seed, food is stored in cotyledons. |
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| 355. |
Food is stored in albuminous seed inA. TestaB. CotyledomC. EndospermD. Plumule. |
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Answer» Correct Answer - C Food is stored in albuminous seed in endosperm. |
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| 356. |
Which is active in MaizeA. MaltaseB. ZymaseC. DiastaseD. Urease |
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Answer» Correct Answer - C Diastase is active in Maize. |
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| 357. |
Pollen grains are formed inA. AntherB. StigmaC. FilamentD. Pollen sac |
| Answer» Correct Answer - D | |
| 358. |
For self pollination flower must be:A. UnisexualB. BisexualC. MonosexualD. Asexual |
| Answer» Correct Answer - B | |
| 359. |
Why is apple called a false fruit? Which part(s) of the flower forms the fruit? |
| Answer» Fruits derived from the ovary and other accessory floral parts are called false fruits. On the contrary, true fruits are those fruits which develop from the ovary, but do not consist of the thalamus or any other floral part. In an apple, the fleshy receptacle forms the main edible part. Hence, it is a false fruit. | |
| 360. |
The given figure represents A. megasporeB. microsporeC. microsporphyllD. microsporangium |
| Answer» Correct Answer - B | |
| 361. |
The pollen grain representsA. male gameteB. male gametophyeC. microsporophyllD. microsporangium |
| Answer» Correct Answer - B | |
| 362. |
Filifom apparatus is characteristic feature of :A. Nucellar embryoB. Aleurone cellC. SynergidsD. Generative cell |
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Answer» Correct Answer - C Filiform apparatus is characteristic feature of synergids. |
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| 363. |
The wheat grain/maize grain has an embryo with one, large, shield shaped cotyledon known as:A. ColeorhizaB. ScutellumC. ColeopiteD. Epiblast |
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Answer» Correct Answer - B The wheat grain has an embryo with one large, shieldshaped cotyledon known as scutellum. |
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| 364. |
Identify A,B,C,D |
| Answer» Correct Answer - A- Degenerating synergids , B - Zygote, C- PEN, D - Degenerating antipodal cells | |
| 365. |
Identify A, B,C,D,E |
| Answer» Correct Answer - A-Polar nuclei, B-Synergid cell, C-Filiform apparatus, D-Pollen tube, E - male gametes | |
| 366. |
Identify A, B, C, D |
| Answer» Correct Answer - A-Pollentube , B-Embryosac, C- Egg cell, D-Pollen grain | |
| 367. |
Which type of pollen grain are germinate on the stigma |
| Answer» Correct Answer - Compatible pollen grains | |
| 368. |
Which genetic mechanism prevent the self-pollination |
| Answer» Correct Answer - Self incompatibility | |
| 369. |
How many cells are present in a mature pollen grain |
| Answer» Correct Answer - 2-cells | |
| 370. |
Part of the gynoecium which receives the pollen is calledA. styleB. stigmaC. ovuleD. ovary |
| Answer» Correct Answer - B | |
| 371. |
Part of the gynoecium which receives the pollen is calledA. StigmaB. StyleC. OvaryD. Ovule |
| Answer» Correct Answer - A | |
| 372. |
Integumented megasporangium isA. ovuleB. pollen sacC. pollen grainD. embryo sac |
| Answer» Correct Answer - A | |
| 373. |
In a fully developed male gametophyte the number of nuclei isA. oneB. fiveC. threeD. four |
| Answer» Correct Answer - C | |
| 374. |
Megasporangium along with its protective integuments is calledA. ovaryB. ovuleC. funicleD. chalaza |
| Answer» Correct Answer - B | |
| 375. |
Fill in the blanks: H. The integuments of ovule surround the ……… all around except at the apex, leaving a narrow passage , called the ……….. |
| Answer» nucellus , micropyle | |
| 376. |
In Cycas or Pinus, ovule has how many integumentsA. ThreeB. OneC. TwoD. None |
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Answer» Correct Answer - B In Cycas or Pinus (gymnosperms), ovule has one integuments. |
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| 377. |
Assertion : Endothecium layer of anther wall plays an important role in dehiscence of anther Reason : The presence of fibrous bands and defferential expansion of inner and outer tangential walls of endothecial cells cause dehiscence of anther.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 | |
| 378. |
From the statement given below choose the option tht are true for a typical female gametophyte of a flowering plant : (i) It is 8- nucleate and 7-celled at maturity (ii) It is free nuclear during development (iii) It is situated inside the integument but outside the nucellus (iv) It has an egg apparatus situated at the chalazal end.A. (i) and (iv)B. (ii) and (iii)C. (i) and (ii)D. (ii) and (iv) |
| Answer» Correct Answer - C | |
| 379. |
Autogamy can occur in a chasmogamous flower ifA. pollen matures before maturity of ovuleB. ovules mature before maturity of pollenC. both pollen and ovules mature simultaneouslyD. both anther and stigma are of equal lengths. |
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Answer» Correct Answer - C::D Autogamy is pollination within a flower. Chasmogamous flowers are those in which anthers and stigma are exposed. For autogamy, in such a flower to take place, pollen and ovule should mature simultaneously and anther and stigma should lie close to each other. |
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| 380. |
From the statements given below, choose the option that are true for a typical female gametophyte of a flowering plant. (i) It is 8-nucleate and 7-celled at maturity. (ii) It is free-nuclear during the development. (iii) It is situated inside the integument but outside the nucellus. (iv) It has an egg apparatus situated at the chalazal end.A. (i) and (iv)B. (ii) and (iii)C. (i) and (ii)D. (ii) and (iv) |
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Answer» Correct Answer - C Female gametophyte is present inside the nucellus. Egg apparatus is situated at the micropylar end. |
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| 381. |
Long silky hair coming out of the cob of maize are______and_______ |
| Answer» Correct Answer - Style, Stigma | |
| 382. |
Hair present on the cob of corn are Or Long filamentous threads protruding at the end of young cob of maize areA. ovariesB. hairsC. anthersD. styles |
| Answer» Correct Answer - D | |
| 383. |
After removal of covering in Pea, the seed consists ofA. CotyledonsB. EmbryoC. Cotyledons + EndospermD. Cotyledons + Endosperm + Pericarp |
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Answer» Correct Answer - B After removal of covering in Pea, the seed consists of embryo. |
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| 384. |
The devices to discourage self pollination areA. pollen release nad stigma receptivity is not sysncronisedB. anther and stigma are placed at different positionC. rejection of pollen by stigma of the same flowersD. all the these |
| Answer» Correct Answer - C | |
| 385. |
Which of these is a condition that makes flowers invariably autogamous?A. DioecyB. Self incompatibilityC. CleistogamyD. Xenogamy |
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Answer» Correct Answer - C Autogamy is possible only when anter and stigma are close together and there is synchrony in pollen release and stigma receptivity. As is case of cleistogamous flowers, the flowers remain closed so that anthers and stigmas are never exposed. The flowers undergo only self pollination. No external pollinating agency is required. |
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| 386. |
Contrivance for self pollination isA. CleistogamyB. BisexualityC. HomogamyD. All of the above |
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Answer» Correct Answer - D Contrivance for self-pollination is cleistogamy, bisexuality and homogamy. |
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| 387. |
In an mature pollen how many nucleus are present name them |
| Answer» Correct Answer - 2-Nucleus, 1-vegetative nucleus | |
| 388. |
Name any plant theat caused pollen allergy |
| Answer» Correct Answer - parthenium | |
| 389. |
The antigenic material(s) in the pollen wall that causes allergy is/are contributed byA. ExineB. Pollen cytoplasmC. IntineD. Exine and intine |
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Answer» Correct Answer - D The antigenic materials in the pollen wall that causes allergy are contributed by exine and intine. |
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| 390. |
Seedless fruits are produced from:A. Cleistogamous flowersB. Unpollinated ovaryC. Unfertilized ovaryD. Fertilized ovary |
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Answer» Correct Answer - C Unfertilized ovary produces seedless fruits, whereas, fertilized ovary produces fruits with seeds. |
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| 391. |
Versatile anthers are connecter withA. EntomophilyB. MalacophilyC. OrnithophilyD. Anemophily |
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Answer» Correct Answer - D Versatile anthers are connected with anemophily |
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| 392. |
What is bagging technique? How is it useful in a plant breeding programme? |
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Answer» Various artificial hybridization techniques (under various crop improvement programmes) involve the removal of the anther from bisexual flowers without affecting the female reproductive part (pistil) through the process of emasculation. Then, these emasculated flowers are wrapped in bags to prevent pollination by unwanted pollen grains. This process is called bagging. This technique is an important part of the plant breeding programme as it ensures that pollen grains of only desirable plants are used for fertilization of the stigma to develop the desired plant variety. |
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| 393. |
Select the dry fruits from the following.A. Guava, orange and mangoB. Groundnut and mustardC. Guava, groundnut and mustardD. Mango, guava and mustard |
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Answer» Correct Answer - B The groundnut and mustard are dry fruits. |
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| 394. |
What is meant by monosporic development of female gametophyte? |
| Answer» The female gametophyte or the embryo sac develops from a single functional megaspore. This is known as monosporic development of the female gametophyte. In most flowering plants, a single megaspore mother cell present at the micropylar pole of the nucellus region of the ovule undergoes meiosis to produce four haploid megaspores. Later, out of these four megaspores, only one functional megaspore develops into the female gametophyte, while the remaining three degenerate. | |
| 395. |
Mature ovules are classified on the basic of funiculus. If micropyle comes to lie close to the funiculus the ovule is termed asA. orthotropousB. anatropousC. hemitropousD. campylotropous |
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Answer» Correct Answer - B Depending upon the configuration and orientation of the body of ovule in relation to funiculus. There are six types of ovule - orthtropous (atropous, erect), anatropous (inverted) hemitropous (half inverted), campylotropous (body curved), amphitropous (both body and embryo sac curved) and cricinotropous (funiculus is coiled around the ovule). circinotropous (funiculus is coiled around the ovule). Anatropous or inverted ovule is the most common type of ovule found in angiosperms (in `82%` of angiosperm families). Here, body of the ovule gets inverted and micropyle is aon lower side. Further micropyle and funiculus lie side and micropyle is close to helium. |
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| 396. |
Refer to the given figure of reproductive structure of Papaver and identify X and Y A. `{:(X,Y),("Syncarpous ovary","Stigma"):}`B. `{:(X,Y),("Stigma","Syncarpous ovary"):}`C. `{:(X,Y),("Thalamus","Apocarpous ovary "):}`D. `{:(X,Y),("Apocarpous ovary","Thalamus"):}` |
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Answer» Correct Answer - B The given figure shows multicarpellary, syncarpous pistil of Papaber. Here X is stigma and Y is syncarpous ovary. |
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| 397. |
Identify the parts labelled A,B,C and D in the given figure and select the correct option. A. `{:(A,B,C,D),("Chalaza","Female gametophyte","Embryo sac","Micropyle"):}`B. `{:(A,B,C,D),("Chalaza","Nucellus","Embryo sac","Micropyle"):}`C. `{:(A,B,C,D),("Micropyle","Egg","Embryo sac","Chalaza"):}`D. `{:(A,B,C,D),("Micropyle","Nucellus","Embryo sac","Chalaza"):}` |
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Answer» Correct Answer - D Given figure represents an antropous ovule where A,B,C and D represent micropyle, nucellus, embryo sac and chalaza respectively. |
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| 398. |
Identify the parts labelled A,B,C and D in the given figure and select the correct option. A. `{:(A,B,C,D),("Synergids","Antipodals",Egg,"Filiform apparatus"):}`B. `{:(A,B,C,D),("Antipodals","Synergids",Egg,"Filiform apparatus"):}`C. `{:(A,B,C,D),("Antipodals","Synergids","Filiform apparatus","Egg"):}`D. `{:(A,B,C,D),("Polar nuclei","Antipodals","Filiform apparatus",Egg):}` |
| Answer» Correct Answer - B | |
| 399. |
Identify the parts labelled as A,B,C and D in the given figure and select the correct option from the given codes. A. `{:(A,B,C,D),("Seed coat","Scutellum","Epicotyl","Hypocotyl"):}`B. `{:(A,B,C,D),("Seed coat","Scutellum","Hypocotyl","Epicotyl"):}`C. `{:(A,B,C,D),("Seed coat","Cotyledon","Endosperm","Hypocotyl"):}`D. `{:(A,B,C,D),("Seed coat","Endosperm","Cotyledon","Hypocotyl"):}` |
| Answer» Correct Answer - D | |
| 400. |
The true embryo develops as a result of fusion ofA. two polar nuclei of embryo sacB. egg cell and male gameteC. synergid and male gameteD. male gamete and antipodals |
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Answer» Correct Answer - B In double fertilisation out of the two male gametes one fues with egg of ossphere to perform generative fertilisation. Generative fertilisation is also called syngamy or true fertilisation. It given rise to a diploid zygote or osspore. |
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