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.
| 251. |
The technique of pegging a branch in soil is calledA. GraftingB. LayeringC. CuttingD. Vegetative propagation. |
| Answer» Correct Answer - B | |
| 252. |
Parthenogenesis is formation ofA. Embryo without fertilizationB. Embryo from pollen sacC. Sporophytic plantlet from gametophyteD. Fruit without fertilization. |
| Answer» Correct Answer - A | |
| 253. |
Grafting is employed for better and quicker yield of good varieties ofA. AppleB. CitrusC. MangoD. All the above |
| Answer» Correct Answer - D | |
| 254. |
A quicker regeneration of grass leaves shall occur byA. CuttingB. GrazingC. IrrigationD. Clipping. |
| Answer» Correct Answer - D | |
| 255. |
Which of the following can show somatogenic reproduction ?A. ParameciumB. AmoebaC. HydraD. All of these |
| Answer» Correct Answer - D | |
| 256. |
Choose the correct statement from amongst the following.A. Dioecious (hermaphrodite) organisms are seen only in animalsB. Dioecious organisms are seen onyl in plantsC. Dioecious organisms are seen in both plants and animals.D. Dioecious organisms are seen only in vertebrates |
| Answer» Correct Answer - C | |
| 257. |
Tissue culture isA. Growth of specific plant structures on artificial mediumB. Growth and multiplication of cells on artifical mediumC. Cryogenic maintenance of tissuesD. Maintenance, growth and differentiation of cells, tissues and organs on artificial medium. |
| Answer» Correct Answer - D | |
| 258. |
Haploid parthenogenesis among insects is shown by orderA. HymenopteraB. HomopteraC. ColeopteraD. All the above |
| Answer» Correct Answer - A | |
| 259. |
a person which shows the secondary sexual characters of both male and female is calledA. intersexB. hermaphroditeC. bisexualD. gynandromorph |
| Answer» Correct Answer - D | |
| 260. |
Which artificial method of vegetative propagation is most commonly applied by farmers for propagating the following : (i) Grape vine (ii) Litchi |
| Answer» Correct Answer - (i) Mound layering (ii) Air layering. | |
| 261. |
In fungi homothallic term is used representA. Dioecious comditionB. Unisexual conditionC. Bisexual conditionD. More than one option is correct |
| Answer» Correct Answer - C | |
| 262. |
Strobilanthus kunthiana (Neeelakuranji) flowers once in 12 years, The last time this plant flowered during September-Octobers 2006. It is found in hilly areas inA. Kerala and KarnatakaB. Tamil NaduC. Andhra PradeshD. Both (1) and (2) |
| Answer» Correct Answer - D | |
| 263. |
Strobilanthus kunthianaA. Shows flowering once in 12 monthsB. Transformed hilly tracks of Kerala, Karnataka, Tamil Nadu into stretchesC. Showed flowering during November - December 2006D. An annual plant |
| Answer» Correct Answer - B | |
| 264. |
Arrange the following plants w.r.t. increasing number of chromosome Rice, Maize, AppleA. Maize, Rice, AppleB. Apple, Rice, MaizeC. Apple, Maize, RiceD. Rice, Maize, Apple |
| Answer» Correct Answer - D | |
| 265. |
In maize pollination is calledA. anemophilyB. entomophilyC. zoophilyD. hydrophily |
| Answer» Correct Answer - A | |
| 266. |
The endosperm cells in angiosperms areA. hapolidB. diploidC. triploidD. tetraploid |
| Answer» Correct Answer - C | |
| 267. |
In wheat, pollination take place byA. waterB. windC. animalsD. bats |
| Answer» Correct Answer - B | |
| 268. |
The endosperm in gymnosperms isA. haploidB. diploidC. triploidD. none of these |
| Answer» Correct Answer - A | |
| 269. |
Which of the following situations correctly describe the similarity between an angiosperm egg and a human egg ? (i) Eggs of both are formed only once in a lifetime. (ii) Both the angiosperm egg and human egg are sttionary. (iii) Both the angiosperm egg and human egg are motile transported. (iv) Syngamy in both results in the option given below.A. (ii) and (iv)B. (iv) and onlyC. (iii) and (iv)D. (i) and (iv) |
| Answer» Correct Answer - B | |
| 270. |
Which of the following situations correctly describe the similarity between an angiosperm egg and a human egg ? (i) Eggs of both are formed only once in a lifetime. (ii) Both the angiosperm egg and human egg are sttionary. (iii) Both the angiosperm egg and human egg are motile transported. (iv) Syngamy in both results in the option given below.A. II and IVB. only IVC. III and IVD. I and IV |
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Answer» Correct Answer - B In case of many terrestrial organisms (including both anigiosperms and humans) which exhibit internal fertilisation, syngamy occurs inside the body of the organism to form zygote. Both the angiosperm and human remains reproductivity active throughout their reproductive phase. It means the formation of egg takes place not only once but many times in a lifetime. In humans, once an egg has been released from ovary, the beating of cilia in the Fallopian tube moves the egg from the ovary to the uterus. So, the egg is considered as motile not stationary. In flowering plants (angiosperms), the gametes are non-motile cells within gametophytes, but for the fusion to take place the non-motile male gametes are carried to female gamete by pollen-tubes. |
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| 271. |
Life span of tortoise isA. 25-50 yearsB. 50-75 yearsC. 75 to 100 yearsD. 100-150 years |
| Answer» Correct Answer - D | |
| 272. |
Vegetatively reproduced organism isA. DahliaB. GingerC. PotatoD. all of the above |
| Answer» Correct Answer - D | |
| 273. |
The endosperm in angiosperm isA. haploidB. diploidC. triploidD. none of these |
| Answer» Correct Answer - C | |
| 274. |
Ciliate motile spores are calledA. aplanosporesB. conidiaC. zoosporesD. oospores |
| Answer» Correct Answer - C | |
| 275. |
Which of the following plants produce non-motile male garmets ?A. Ulothrix MarchantiaB. Strobianthus, CharaC. Spirogyra, UlothrixD. Mangifera, Pinus |
| Answer» Correct Answer - D | |
| 276. |
Choose correct option for asexual and sexual reproduction in organisms that have a relatively simple organisation. A. (a) & (b)B. (b) & (c ) onlyC. (a), (b) & (c )D. (c ) & (d) |
| Answer» Correct Answer - C | |
| 277. |
Filll in the blanks w.r.t (Male) and (Female) structures in Marchantia. |
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Answer» (A) - Archegonium (B) -Motile |
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| 278. |
Fill in the blanks : (a) Fusion of two ……. results in the formation of zygote. (b) Development of …….. from the …… is called embryogenesis. (c) ……. animals lay eggs. (d) After fertilization, ……… are transformed into seeds. |
| Answer» (a) gametes , (b) embroy, zygote , (c) Oviparous (d) Ovules. | |
| 279. |
How many kinds of natural vegetative reproduction take place in flowering plants? |
| Answer» Natural vegetative reproduction takes place by modified tuberous roots having adventiitous buds, underground modified stems, creeping stems, leaves, bulbils and turions. | |
| 280. |
Examine the figures A,B,C & D given below and select the right option for female sex organs. A. a,d, & fB. b,d & fC. a,c & eD. a,d & e |
| Answer» Correct Answer - D | |
| 281. |
Choose correct option w.r.t. following structures A. (a) & (b)B. (b) & (c )C. (a) & (c )D. (b) only |
| Answer» Correct Answer - D | |
| 282. |
Name the artificial means of vegetative reproduction. |
| Answer» The artificial means of vegetative reproduction are cuttings, layering grafting and micropropagation. | |
| 283. |
Grafting method can be usedA. In all tracheophytesB. Only in gymnospermic plantsC. In cambium containing eustelic plantsD. Only in atactostelic plants |
| Answer» Correct Answer - C | |
| 284. |
Select the incorrect statementA. Zygote is thick walled diploid sexual sporeB. Flowers are bisexual in sweet potatoC. Ulothrix shows external fertilisationD. The nucule in Chara has a cap of five coronary cells |
| Answer» Correct Answer - A | |
| 285. |
Gammae are means of vegetative reproduction inA. ColocasiaB. SpirogyraC. MarsileaD. Marchantia |
| Answer» Correct Answer - D | |
| 286. |
Identify the incorrect statement.A. In asexual reproduction, the offsprings produced are morphologically and genetically identical to the parentB. Zoospores are sexual reproductive structuresC. In asexual reproduction, a single parent produces offspring with or without the formation of gametesD. Conidia are asexual structures in Penicillium |
| Answer» Correct Answer - B | |
| 287. |
Identify the incorrect statement.A. Zoospores are sexual reproduction structures.B. In asexual reproduction , the offspring produced are morphologically and genetically identical to the parent .C. In asexual reproduction, a single parent produces offspring with or without the formation of gametes.D. Conidia are asexual structures in Penicillium |
| Answer» Correct Answer - A | |
| 288. |
Which of the following statements about vegetative reproduction is incorrect ?A. Stem cutting is a common horiticultural method of plant propagationB. In trench layering the basal branch may pegged at several places in soil at regular intervalsC. Stock has large diameter than scion in crown graftingD. Gootee is an ancient method of propagation in subtropical trees and shrubs |
| Answer» Correct Answer - B | |
| 289. |
Identify the incorrect statement.A. In asexual reproduction, the offsprings, produced are morphologically indentical to the parent.B. Zoospores are sexual reproductive structuresC. In asexual reporduction, a single parent produces offsprings with or without the formation of gemetesD. Conidia are asexual structures in Pencillium |
| Answer» Correct Answer - B | |
| 290. |
There is no natural death in single celled organisms like Amoeba and bacteria becauseA. they cannot reproduce sexuallyB. they reproduce by binary fissionC. parental body is distributed among the offspringsD. they are micorscopic |
| Answer» Correct Answer - C | |
| 291. |
There is no natural death in single celled organisms like Amoeba and bacteria becauseA. They cannot reproduced sexuallyB. They reproduced by binaary fissionC. Parental body is distributed among the offspringsD. They are microscopic |
| Answer» Correct Answer - C | |
| 292. |
For which of the following organisms there is no natural death ?A. Bacteria reproducing by sporulationB. Yeast reproducing by buddingC. Unicellular organisms reproducing by sporesD. Unicellular organisms reproducing by binary fission |
| Answer» Correct Answer - D | |
| 293. |
Air layering or pot layering is followed for those plants whichA. Do not sucker readilyB. Do not have flexible branchesC. Both aboveD. None above |
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Answer» Correct Answer - C This is employed in plants with thick nonflexible branches which can not be easily bent in this method part of the stem is girdled i.e. a ring of bark is removed this part is covered with moist moss or cotton and enclosed in a polythene bag. The roots appear after sometime and at that stage the brach is cut and planted. |
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| 294. |
Select the correct match w.r.t vegetative propagules in angispermsA. Rhizome : Water hyacinthB. Offset : BryophyllumC. Bulbil : OxalisD. Leaf buds : Ginger |
| Answer» Correct Answer - C | |
| 295. |
Asexual reproduction is common inA. Single celled organismsB. Organisms having simple organisationC. Aquatic plantsD. More than one option is correct |
| Answer» Correct Answer - D | |
| 296. |
Most common special asexual reproductive structure seen in members of algae isA. ZoosporeB. CpnidiaC. SporangiosporeD. Gemmules |
| Answer» Correct Answer - A | |
| 297. |
Asexual reproduction os common inA. vertebratesB. unicellular organismsC. multicellular organismsD. none of the above |
| Answer» Correct Answer - B | |
| 298. |
During budding in yeastA. Cytokinesis is unequalB. Identity of parent is lostC. Clones are producedD. More than one option is correct |
| Answer» Correct Answer - D | |
| 299. |
Why inarhing is an improved method of vegetative multiplicationA. Seeds are not formedB. Stock and scion remain intactC. Improved seed formationD. All of these |
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Answer» Correct Answer - B The rooted shoot of one plant called stock is joined with a piece of shoot of another plant known as scion. The grafting ends of both stock and scion are cut obliquely and then placed over one another in such a way that the cambia of two came in close contact. |
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| 300. |
Grafting of vegetable yielding plants is not done becauseA. The variety cannot be improvedB. The yield cannot be improvedC. They are mostly herbsD. They may get killed |
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Answer» Correct Answer - C Grafting is generally done between the related varieties or species. This method has been practised for many economically useful plants, such as rose, mango, apple, citrus, rubber etc. |
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