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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.
| 51. |
There are various types of reroducting , the type of resproduction adopted by an organism depends onA. morphology of organismB. the habitat and morphology of organismC.D. |
| Answer» Correct Answer - D | |
| 52. |
Which is a vital link that ensures continuity of species between organisms of one generation and the next? |
| Answer» Correct Answer - Zygote | |
| 53. |
Which of the following featurs cannot be shown by structure which is vital link between be two generation ensuring continuity of species ? (a) Thick walled (b) Multicelled (c ) One set of chromosomes (d) Meiocyte (e) Resting structureA. (a), (b), & (e)B. (a),(b) & (d)C. (b) & (c )D. (d) & (e) |
| Answer» Correct Answer - C | |
| 54. |
Given below are a few statements related to exgternal fertilisation. Choose the correct statements. (i) The male and female gametes are formed and released simultaneously. (ii) Only a few gametes are released into the medium. (iii) Water is the medium in a majority of organisms exhibiting external fertilisation. (iv) Offspring formed as a result of external fertilisation have better chance of survival than thos formed inside an organism.A. (iii) and (iv)B. (i) and (iii)C. (ii) and (iv)D. (i) and (iv) |
| Answer» Correct Answer - B | |
| 55. |
The vital link that ensures continuity of species between organism of generation and next are all exceptA. ZygosporeB. OosporeC. ZygoteD. Opsphere |
| Answer» Correct Answer - D | |
| 56. |
Development of embryo without fertilisation is calledA. parthenogenesisB. gametogenesisC. metagenesisD. oogenesis |
| Answer» Correct Answer - A | |
| 57. |
A few plants exhibit unusual flowering phenomenon, which of them flower only once in their life time, generally after 50 - 100 years and produce lagre number of fruits ?A. BambooB. Calistemon linearisC. Cymbopogoen reptocusD. Strobilanthus kunthiana |
| Answer» Correct Answer - A | |
| 58. |
Which one of the following plants does not help in vegetative propagation by leaves ?A. OxalisB. BegoniaC. KalanchoeD. Bryophyllum |
| Answer» Correct Answer - A | |
| 59. |
Seeds without fertilisation are obtained from:A. dormacyB. apomixisC. polyembryonyD. parthernocarpy |
| Answer» Correct Answer - B | |
| 60. |
The vital link ensures continuity of species between organisms of one generation and the next isA. ZygoteB. SpermC. Pollen grainD. Egg |
| Answer» Correct Answer - A | |
| 61. |
Select the plant having the shortest life spanA. BanyanB. PeepalC. BananaD. Rose |
| Answer» Correct Answer - D | |
| 62. |
from where will you get eh most reliable information about the length of life span of an animal ? |
| Answer» Correct Answer - Zoo | |
| 63. |
Chromosome number in melocyte of drosophila (fruit fly) isA. 2B. 4C. 6D. 8 |
| Answer» Correct Answer - D | |
| 64. |
External fertilisationA. HeterogametesB. Internal fertilisationC. HeterogametesD. Zygotic mitosis to develop embryo |
| Answer» Correct Answer - C | |
| 65. |
Life span of crocodile and May fly is respectivelyA. 15 years, 1weekB. 30 years, 1 yearC. 45 years, 1 monthD. 60 years, 1day |
| Answer» Correct Answer - D | |
| 66. |
Which of the following factors is/are responsible for how organism reproduces ?A. Organism habitalB. Internal physiologyC. Environmental factorsD. More than one option is correct |
| Answer» Correct Answer - D | |
| 67. |
Callus isA. Tissue that forms embryoB. An insoluble carbohydrateC. Tissue that grows to form embryoidD. Unorganised actively dividing mass of cells maintained in culture. |
| Answer» Correct Answer - D | |
| 68. |
Callus formation is promoted byA. Proper light and subculuringB. Darkness and subculturingC. Excess of NAAD. Absence of salts. |
| Answer» Correct Answer - B | |
| 69. |
Arrange the following w.r.t increasing life span : Rose, Fruit fly RiceA. Fruit fly, Rice RoseB. Rose, Rice, Fruit flyC. Rice, Rose, Fruit flyD. Fruit fly, Rose, Rice |
| Answer» Correct Answer - A | |
| 70. |
Mark the animal which has shortest life span among given animalsA. ElephantB. DogC. CrowD. Tortoise |
| Answer» Correct Answer - C | |
| 71. |
Which of the following pairs of animals have almost similar maximum life span ?A. Ant queen and squirrelB. Toad and house mouseC. Bull frog and house ratD. Carp and guinea-pig |
| Answer» Correct Answer - A | |
| 72. |
Arrange the following organisms w.r.t increasing life span Peepal, Wheat, Banyan tree, Rose |
| Answer» Wheat `lt` Rose `lt` Banyan tree `lt` Peepal | |
| 73. |
In Tobacco callus, which one shall induce shoot differentiation in combination of auxin and cytokininA. Higher concentration of cytokinin and lower concentration of auxinB. Lower concentration of cytokinin and higher concentration of auxinC. Only cytokinin and no auxinD. Only cytokinin and no auxin |
| Answer» Correct Answer - A | |
| 74. |
Differentiation of callus into plant parts isA. EmbryogenesisB. Embryoid formationC. MorphogenesisD. Totipotency. |
| Answer» Correct Answer - C | |
| 75. |
Study the diagrams of the animals gives below. Arrange them in the order of increasing life span and select the correct option . A. A-C-D-BB. A-B-C-DC. D-A-CBD. A-D-C-B |
| Answer» Correct Answer - D | |
| 76. |
A: Maximum life span is the characteristic of population. R. It is the maximum time period upton which a population has survivedA. If both Assertion & Reason are true and the reason is the correct explanation of the assertionB. It both Assertion & Reason are true but the reason is not the correct explanation of the assertionC. If Assertion is true statement but Reason is falseD. If both Assertion and Reason are false statements |
| Answer» Correct Answer - D | |
| 77. |
A. Life expectancy is based on average life span. R. It is the age at which half the population still survives.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertionB. It both Assertion & Reason are true but the reason is not the correct explanation of the assertionC. If Assertion is true statement but Reason is falseD. If both Assertion and Reason are false statements |
| Answer» Correct Answer - B | |
| 78. |
Which of the following statements are correct for events involved in sexual reproduction ? Justify them. (a) Fundamental similarity in events (b) Sexual structures are same (c ) Sequential events |
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Answer» (a) & (c ) are correct (a) fundamenttal similarity is associated with events involved in sexual reproduction In all the organisms three distinct stages occur namely pre-fertilisation , and post - fertilisation. (b) Sexual structures are different (c) Three stages involved in sexual reproduction occur in sequential order . |
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| 79. |
Choose the incorret statementA. A living organism can be sure that there is another individual of its kind ot take its place when it dies.B. Reproduction is one of the most characteristic feature of living organismsC. All individuals are mortal including all single celled organismD. Life expectancy is based on average life span |
| Answer» Correct Answer - C | |
| 80. |
Find the correct matchA. Monoecious plant : Biseexual flowerB. Dioecious plant : Polygamous plantC. Haploid parants : MitogametesD. Dissimilar gametes : Isogametes |
| Answer» Correct Answer - C | |
| 81. |
Justify the given below terms for Chara. (a) Specialised sex organs (b) Monoecius (c ) Heterogametes |
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Answer» Specialised sex organts (Male) - Antheridium (Female) - Oogonium. (b) Monoecious (Male) and (Female) sex organs on body. (c ) Heterogameters (Male) is motile and smaller (Female) non-motile and larger |
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| 82. |
In Chara, male sex organ is called asA. GlobuleB. NuculeC. OogoniumD. Carpocephalum |
| Answer» Correct Answer - A | |
| 83. |
What is the carrier of (Male) gamete in the Pinus, Marchntia, Mango, Chara, Funaria respectively ? [Where A-Pollen tube, `B-H_(2)O]`A. A,B,B,A,AB. A,B,A,B,BC. B,A,A,B,AD. A,B,A,A,B |
| Answer» Correct Answer - B | |
| 84. |
Which of the following plants cells with show totipotency ?A. Sieve tubesB. Xylem vesselsC. MeristemD. Cork cells. |
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Answer» Correct Answer - C Xylem vessels and cork cells are dead while sieve tube cells do not possess nuclei. |
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| 85. |
Cellular totipotency was demostrated byA. Theodore SchwannB. A.V. LeeuwenhoekC. F.C. StewardD. Robert Hooke. |
| Answer» Correct Answer - C | |
| 86. |
Fill in the blanks (i) Progenitor of next generation in seed is ____________ (ii) Morphogenesis and differentiation is parts of _____________ |
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Answer» (i) Embryo (ii) Embryogenesis |
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| 87. |
Read the following statements and select the correct option, Statement 1 : Many pants are propagated vegetatively even though they bear seeds. Statement 2 : Sweet potatoes multiply vegetatively by root tubers.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 is false |
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Answer» Correct Answer - A Vegetative reproduction is asexual type of reproduction potato, Sugarcane Apple, etc. are multiplied by asexual means |
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| 88. |
Why asexual reproduction is sometimes disadvantageous ?A. It allows animals that do not move around to produce offspring without findingmateB. it allows an animals to produce many offspring quicklyC. it save the time and energy of gamete productionD. it produce genetically uniform populations |
| Answer» Correct Answer - D | |
| 89. |
A: External syngamy is considered disadvantageous as compared to the internal syngamy. R. The offspring produce by externla symgamy are more vulnerable to predators.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertionB. It both Assertion & Reason are true but the reason is not the correct explanation of the assertionC. If Assertion is true statement but Reason is falseD. If both Assertion and Reason are false statements |
| Answer» Correct Answer - A | |
| 90. |
External syngamy occurs in case ofA. PeptilesB. BirdsC. MammalsD. Bony fishes |
| Answer» Correct Answer - D | |
| 91. |
Clear cut distinction between vegetative reproductive and senescent phase is shown byA. All annuals and perennialsB. All biennial and perennialsC. All annuals and biennialsD. All perennials |
| Answer» Correct Answer - C | |
| 92. |
Define : (i) Juvenile phase, (ii) Reproductive phase, (iii) Senescent phase. |
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Answer» (i) Juvenlle phase is the period of growth the birth of an individual upto reproductive maturity. (ii) Reproductive phase starts after juvenile phase and remains upto the stage when an organism is capable of reproduction. (iii) Senescent phase is the phage of ageing when an organism loses its capacity of reprodcution. In plants, it is characterised by yellowing and leaf fall. |
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| 93. |
Define (a) Juvenile phase, (b) Reproductive phase, (c) Senescent phase |
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Answer» (a) Juvenile phase: It is the period of growth in an individual organism after its birth and before it reaches reproductive maturity. (b) Reproductive phase: It is the period when an individual organism reproduces sexually. (c) Senescent phase: It is the period when an organism grows old and loses the ability to reproduce. |
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| 94. |
Which of the following represent the correct sequence of phases in the life cycle of wheat ? [where J-Juvenile phase, R- Reproductive phase, I-Interflowering period , G-Gap phase, S-senescence, V-Vegetative phase]A. V `to` I `to` R `to` G `to` SB. J `to` R `to` G `to` R `to` SC. J `to` R `to` SD. V `to` R `to` S `to` G |
| Answer» Correct Answer - C | |
| 95. |
Complete the sequence involved in the cycle of polycarpic plant. `("Juvenile phase")to("Flowering")to(A)to("Flowering")to("Senescent phase")` |
| Answer» Inter-flowering phase | |
| 96. |
`{:("Zoospore,","Conidia,","Tuber,"),("Offset,","Pollen,","Zygote,"):}` From the structure given in above box how many are not associated with asexual reproduction ?A. ThreeB. TwoC. FourD. One |
| Answer» Correct Answer - B | |
| 97. |
A : Cereals are monocarpic plants. R: They have distinct juvenile, reproductive and senescent phases.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)B. If both Assertion & Reason are true and the reason is not the correct explanation of the assertion, then mark (2)C. If Assertion is true statements but Reason is false then mark (3)D. If both Assertion and Reason are false statements, then mark (4) |
| Answer» Correct Answer - B | |
| 98. |
A : Runner, tuber, sucker, offset etc. are vegetative propagules. R: Two parents are involved the formation of these structure.A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)B. If both Assertion & Reason are true and the reason is not the correct explanation of the assertion, then mark (2)C. If Assertion is true statements but Reason is false then mark (3)D. If both Assertion and Reason are false statements, then mark (4) |
| Answer» Correct Answer - C | |
| 99. |
Pollen embryoids were discovered byA. Konar and NatarajaB. Guha and MaheshwariC. Skoog and MilerD. Helperin and Wetherell. |
| Answer» Correct Answer - B | |
| 100. |
Development of haploid plants from pollen isA. ParthenocarpyB. EmasculationC. AndrogenesisD. Somatic hybridisation |
| Answer» Correct Answer - C | |