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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Your friend arranged an artificial nests for birds on the terrace of his building And also provided drinking water. What is your reaction on this activity? A) It is not an encouraging activity B) This is very great deed. I appreciate him C) By this activity the birds go far away D) I oppose this type of activities |
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Answer» B) This is very great deed. I appreciate him |
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| 2. |
World ozone day is celebrated on (a) 5th June (b) 16th September (c) 1st October (d) 23rd October |
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Answer» Correct answer is (b) 16th September |
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| 3. |
Sunken stomata is the characteristic feature of (a) hydrophyte (b) mesophyte (c) xerophyte (d) halophyte |
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Answer» Correct answer is (c) xerophyte |
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| 4. |
World population day is observed on (a) 11th July (b) 16th September (c) 23rd October (d) 1st December |
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Answer» Correct answer is (a) 11th July |
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| 5. |
Which of the following pairs is correctly matched ? (a) Uricotelism-aquatic habitat (b) Parasitism-intra-specific relationship (c) Excessive perspiration-xeric adaptation(d) Stream-lined body-aquatic adaptation |
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Answer» Correct answer is (d) Stream-lined body-aquatic adaptation |
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| 6. |
Read the following signboards. Circle the head nouns in the noun phrases used in the signboards and write them in the space provided |
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Answer» Baby, Road, Bridge, Clothing, Parking |
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| 7. |
Write at least 5 common nouns and 5 proper nouns each. |
Answer»
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| 8. |
……… is an alkaloid that induces polyploidy. (a) Nictonine (b) Stramonium (c) Atropine (d) Colchicine |
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Answer» (d) Colchicine |
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| 9. |
The taxonomy which involves the similarities and dissimilarities among the immune system of different taxa is termed as …………… . (a) Chemotaxonomy (b) Molecular systematics (c) Serotaxonomy (d) Numerical taxonomy |
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Answer» (c) Serotaxonomy |
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| 10. |
Cronquist classification is a failure. Justify. |
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Answer» Cronquist classification system is not very useful for identification and cannot be adopted in herbaria due to its high phylogenetic nature. |
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| 11. |
Which of the following is a flowering plant with nodules containing filamentous nitrogen – fixing micro – organisms?(a) Crotalaria juncea (b) Cycas revoluta (c) Cicer arietinum (d) Casuarina equisetifolia |
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Answer» (a) Crotalaria juncea |
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| 12. |
Classification is a essential part of biology – Justify. |
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Answer» Classification is essential to biology because there is a vast diversity of organisms to sort out and compare. Unless they are organized into manageable categories it will be difficult for identification. |
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| 13. |
Define Cladogram. |
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Answer» The outcome of a cladistic analysis is a cladogram, a tree – shaped diagram that represent the best hypothesis of phylogenetic relationships. |
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| 14. |
In which organelle of plant cell does the barcode genes are located? Name the genes. |
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Answer» Chloroplast, the genes are matK and rbcL. |
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| 15. |
Why do we need the classification of organisms? |
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Answer» The classification of organisms: 1. Understanding the classification of organisms can gives an insight into other fields and has significant practical value. 2. Classification helps us to know about different taxa, their phylogenetic relationship and exact position. 3. It helps to train the students of plant sciences with regard to the diversity of organisms and their relationship with other biological branches. |
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| 16. |
Differentiate Regional Flora from continental flora. |
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Answer» Regional Flora from continental flora. 1. Regional Flora: Flora covering a large geographical area or a botanical region Ex: flora of Madras Presidency. 2. Continental Flora: Flora covering the entire continent. Ex: flora of Europaea. |
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| 17. |
18th International Botanical congress was held at …………… . (a) Sydney (b) Leningard (c) Melbourne (d) London |
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Answer» (c) Melbourne |
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| 18. |
Why do we need Cladistics? |
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Answer» Cladistics: 1. Cladistics is now the most commonly used and accepted method for creating phylogenetic system of classifications. 2. Cladistics produces a hypothesis about the relationship of organism to predict the morphological characteristics of organism. 3. Cladistics helps to elucidate mechanism of evolution. |
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| 19. |
Define Cladistics. |
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Answer» The method of classifying organisms into monophyletic group of a common ancestor based on shared apomorphic characters is called Cladistics. |
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| 20. |
State the demerits of RAPD analysis. |
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Answer» RAPD analysis has the major disadvantage that results are difficult to replicate and in the homology of similar bands in different taxa may be nuclear. |
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| 21. |
Who proposed the concept of “idos” or species? (a) Theophrastus (b) Stebbians (c) Darwin (d) Plato |
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Answer» Correct Answer is : (d) Plato |
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| 22. |
…………… are the tools for identifying unfamiliar plants. (a) Flora(b) Keys (c) Monograph (d) Catalogues |
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Answer» Keys are the tools for identifying unfamiliar plants. |
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| 23. |
In 2017, …………… International Botanical congress was held at Shenzhen. (a) 17th (b) 18th (c) 19th (d) 20th |
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Answer» Correct Answer is : (c) 19th |
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| 24. |
The genetic sequence used to identify a plant is known as “DNA tags” or “DNA barcodes”. |
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Answer» The system of naming the organism with two names, generic name and specific (species) name is known as binomial system of nomenclature, e.g. Pavo cistatus – Indian pea fowl. |
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| 25. |
The leaves of …………… is used in hemorrhoidal salves & shampoos. (a) Aloe barbadense (b) Aloevera (c) Allium sativum (d) Allium cepa |
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Answer» (b) Aloevera |
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| 26. |
…………… is the lowest level of classification. (a) Kingdom (b) Class(c) Order (d) Species |
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Answer» Species is the lowest level of classification. |
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| 27. |
…………… is a complete global account of a taxon of any rank. (a) Flora (b) Keys (c) Monograph (d) Catalogues |
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Answer» (c) Monograph |
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| 28. |
Outcome of cladistics analysis is …………… . (a) Monogram (b) Monograph (c) Cladogram (d) Cladograph |
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Answer» (c) Cladogram |
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| 29. |
Name any 4 sub classes of Liliopsida. |
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Answer» 4 sub classes of Liliopsid: 1. Alismatidae 2. Arecidae 3. Commelinidae 4. Zingiberidae |
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| 30. |
Classification based on protein content is called …………… .(a) Serotaxonomy (b) Cytotaxonomy (c) Chemotaxonomy (d) Molecular taxonomy |
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Answer» (a) Serotaxonomy |
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| 31. |
The vernacular name of Albizia amara in South Tamilnadu is …………… . (a) Thurinji (b) Kurinji (c) Nithyakalyani (d) Usilai |
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Answer» Correct Answer is : (d) Usilai |
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| 32. |
Inflorescence in Aloe is …………… . (a) Compound Spadix(b) Spike (c) Paricle (d) Solitary |
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Answer» Inflorescence in Aloe is Spike. |
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| 33. |
How many plants in the list given below have composite fruits that develop from an inflorescence? Walnut, poppy, radish,pineapple, apple, tomato …………… .(a) Two (b) Three (c) Four (d) Five |
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Answer» Correct Answer is : (a) Two |
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| 34. |
DNA bar coding was introduced by …………… . (a) Stebbins (b) Hebert (c) Camp & Gilly (d) Darwin |
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Answer» Correct Answer is : (b) Hebert |
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| 35. |
Biosystematics is also called as …………… . (a) α – taxonomy (b) S – taxonomy (c) Ω – taxonomy (d) β – taxonomy |
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Answer» (c) Ω – taxonomy |
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| 36. |
Which is the lowest taxon in classification? Define. |
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Answer» Species is the lowest taxon in classification. It is defined as the group of individuals which are closely resembling each other and interbreed among themselves producing fertile offspring. |
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| 37. |
Taxonomy based on chromosomal number & characteristics is called …………… . (a) Serotaxonomy (b) Cytotaxonomy (c) Chemotaxonomy (d) Molecular taxonomy |
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Answer» (b) Cytotaxonomy |
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| 38. |
What are vernacular names? Give an example. |
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Answer» Vernacular names are known as common names. Example: Albizia amara L. is called as Usilai in South Tamil Nadu and Thurinji in North Tamil Nadu. |
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| 39. |
Rhiphidium inflorescence is seen in …………… . (a) Solanum nigrum (b) Solanum tuberosum (c) Datura (d) Withania somnifera |
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Answer» (a) Solatium nigrum |
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| 40. |
If you were the big man, what would you do in the battlefield? |
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Answer» If I were the big man, I would not leave the battlefield. As I knew the skill of the little bowman in archery, I would stay on the elephant and finish the battle. |
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| 41. |
The term biosystematics was introduced by …………… . (a) Bauhin (b) Camp & Gilly (c) Cronquist (d) Smith |
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Answer» (b) Camp & Gilly |
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| 42. |
The fruit of Datura metal is …………… . (a) Spinescent Capsule(b) Regma (c) Legume (d) Capsule |
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Answer» (a) Spinescent capsule |
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| 43. |
Which stimulated Engler and Prantl to prepare phylogenic classification? |
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Answer» The publication of the Origin of Species (1859) by Charles Darwin has given stimulus for the emergence of phylogenetic system of classification. |
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| 44. |
Define Nomenclature. |
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Answer» Assigning name for a plant is known as Nomenclature. |
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| 45. |
“The evolution and classification of flowering plants” – book was written by …………… . (a) Engler & Prantl (b) Bentham & Hooker (c) Cronquist (d) Theophrasthus |
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Answer» (c) Cronquist |
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| 46. |
Fill in the blanks with the opposite of the word underlined. 1. Never speak harshly, always speak ..... . 2. Cruelty towards animals is a sin. We ...... should show ......... to animals. 3. Everybody likes to be praised. Nobody likes to be .......... . 4. I am glad I got the job, but ....... on leaving my home town. 5. David told his timid young brother to be ....... |
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Answer» 1. Never speak harshly, always speak kindly. 2. Cruelty towards animals is a sin. We should show kindness to animals. 3. Everybody likes to be praised. Nobody likes to be blamed. 4. I am glad I got the job, but sad on leaving my home town. 5. David told his timid young brother to be brave. |
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| 47. |
Fill in the blanks with the verb in Simple Future Tense. 1) Our exams ______ (postpone) because of the second wave Corona. 2) I ______ (meet) you this evening. 3) I don’t think she ______ (accept) your proposal.4) I ______ (tell) you about it later. 5) I ______ (write) to you as early as possible. 6) Next week, we ______ (buy) a new car. 7) This shop ______ (close) by 8 p.m. today. 8) She ______ (come) to the party. 9) I think, they ______ (lose) their match against Australia. 10) Tomorrow, my father ______ (take) us to circus. |
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Answer» 1. will be posponed 2. will meet 3. will accept 4. will tell 5. shall write 6. shall buy 7. will be closed 8. will come 9. will lose 10. will take |
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| 48. |
Can the big man win the battle ? Substantiate your answer. |
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Answer» I think the big man can’t win the battle as he is not a skilled warrior. |
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| 49. |
The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of chromosomes in the micro spore mother cells of the same plant shall be(a) 20(b) 10(c) 40(d) 15 |
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Answer» Correct option (a) 20 Explanation: Shoot tip cells of a maize plant is a sporophytic structure (2n) and microspore mother cells of maize plant is also a sporophytic structure (2n). So, microspore mother cells (MMC) contain 20 chromosomes. |
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| 50. |
Write a note on Binomial nomenclature. |
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Answer» binomial nomenclature, the first one is called genus name and second one is specific epithet. Example: Mangifera indica, Mangifera is a genus name and indica is specific epithet. |
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