In an embryo sac, the cells that degenerate after fertilisation are: [NCERT Exemplar] (a) Synergids and primary endosperm cell. This part also contains solved exercise short questions and MCQs of all the chapter of 12th class biology. [Foreign 2012: HOTS]. Answer: Explaination: Temperature and humidity. 10. (b) retarding the growth of the pollen tube. MDCAT Biology Chapter 2 MCQ Test With Answer for Biology chapter 2 (Biological Molecules) The Chapter Contain Following Key Topics: Animal and plant cell - Prokaryotic and eukaryotic cell - … (c) Anemophily (d) All of these, Question 2. (c) Development of tissues of all kinds from a cell in a medium Answer: Explaination: The synergids have filiform apparatus, the special cellular thickenings at the micropylar tip. (a) Development of a fruit from a flower in a medium (c) Anther Which of the following represents the female gametophyte in angiosperms? Answer: Explaination: Sporogenous tissue. ... Grade 11 is the first year of a student in a college while Grade 12 is the second and final year. (a) 100 (a) By water Biology MCQs For Entry Test Preparation (Chapter Wise) Biology MCQs preparation is very important for students who want to pursue their career in the medical field. (d) Seven called, Question 7. [Foreign 2014]. The questions in these free online tests or quizzes are important for CBSE Class 12 Biology Board Exam as well as Medical Entrance … 76. (a) Embryogeny 31. [True/False], 29. (a) Cambium Which structure is not found in Angiosperm? (a) Hypogeal (b) J. C. Bose 2nd year Biology notes all chapter in PDF download. (b) Synergids and antipodals. 3. (a) Oblique to funiculus The most probable cause for the above situation is [NCERT Exemplar] (a) plant is dioecious and bears only pistillate flowers. (d) None of these, Question 19. 21. 58. (a) 100 (b) 150 (c) 200 (d) 250, 2. (b) Fusion of egg and pollen nuder of two pollen grains (a) Archegonium How many microspore mother cells would be required to produce one hundred pollen grains in a pollen sac? [Foreign 2013]. 4. – The pollen grains are light and non- sticky/dry. 2. [Delhi 2010C], Answer: Explaination: Apomixis is the phenomenon e.g. (c) In straight line with funiculus antipodals and endosperm Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. (c) Leeuwen Hock seem to describe the water-pollinated submerged plants. Choose the correct statement from the following. How do the pollen grains of Vallisneria protect themselves? Give a reason. (b) Synergid, antipodal and polar nuclei. 84. Currently, we use: a. (b) Caruncle Answer: Explaination: – All those events from the deposition of pollen on the stigma till the entry of pollen tube into the ovule, are collectively referred to as pollen-pistil interaction. 1. (d) Endosperm, Question 9. (d) plant is dioecious and bears only staminate flowers. (c) Cleistogamous flowers exhibit both autogamy and geitonogamy. Of the eight nuclei formed in the em bryo sac, six become organised into cells. (ii) They are used to raise the crop. 47. Physics (2nd Year) Multiple Choice Questions Chapter # 12: Electrostatics to Chapter # 21: Nuclear Physics 15. [AI 2010; HOTS]. 78. Epidermis, Endothecium, Middle layers, Sporogenous tissue. Mention the pollinating agents for aquatic plants, Vallisneria and water lily, respectively. (d) Fusion between synergid cells and male gamete, Answer: (c) Fusion of two polar nuclei with one male gamete, Question 24. When the pollen of a flower is transferred to the stigma of another flower on the same plant, the process is known as (a) autogamy (b) geitonogamy (c) xenogamy (d) cleistogamy, 6. These pictures show the gynoecium of (A) Papaver and (B) Michelia flowers. Solved Biology notes for class 12 chapter … [Delhi 2011C]. Who proved that the cells are totipotent? Polymbryony occurs in: 65. 57. Answer: Explaination: Parthenium (Carrot grass). Answer: Explaination: At the eight-nucleate stage. Answer: Explaination: – In (A) Papaver, the ovary is syncarpous, where the carpels are fused together. (d) Apogamy, Question 31. (b) Dichogamy 5. 90 questions are included from the biology section comprising Botany and Zoology sub-section, which can be achieved with Biology MCQs … [NCERT Exemplar] (a) Cleistogamous flowers always exhibit autogamy. Sexual Reproduction in Flowering Plants Class 12 Notes Biology in PDF are available for free download in myCBSEguide mobile app. 79. Answer: Explaination: Banana fruit develops without fertilisation of the ovary; hence it is considered parthenocarpic. Epidermis is the outermost. Give any one reason. – Since, parthenocarpic fruits are seedless or the seeds are non-viable, banana is propagated by vegetative means. Name two parasitic species of plants that produce many minute seeds in a fruit. Pollination in Lotus is: (b) Entromophily [AI 2012; HOTS]. Answer: Explaination: The pollen grains can be stored for years in liquid nitrogen (-196 °C) in pollen banks and used for crop breeding programmes. pollen to the stigma of the pistil. (c) Dichogamy Biology MCQs for Class 12 with Answers Chapter 2 Sexual Reproduction in Flowering Plants. (b) Skoog 51. [AI 2014C]. 83. [Delhi 2010C; HOTS]. Students can solve NCERT Class 12 Biology Sexual Reproduction in Flowering Plants MCQs … RD Sharma Solutions , RS Aggarwal Solutions and NCERT Solutions. 66. Answer: Explaination: Four microsporangia. 49. grasses, Citrus, mango and members of Asteraceae. When pollen tube enter into the nucellus through micropyle is called: If you take an online MCQ test, our system will randomly choose 17 questions. (a) Grape [AI 2014]. Give an example of a species of flowering plants with such seed formation. 72. (d) both anther and stigma are of equal lengths. State the significance of pollination. (a) Nawaschin Antipodal cells, Synergids, Zygote, Female gamete, 33. 1. Write the number of chromosomes in its endosperm. (c) Penta celled An anther with malfunctioning tapetum often fails to produce viable male gametophyte. Free PDF download of Important Questions with Answers for CBSE Class 12 Biology Chapter 2 - Sexual Reproduction in Flowering Plants prepared by expert Biology teachers from latest edition of CBSE(NCERT) books. (d) Dioecious plant with bisexual flowers. 25. 42. Multiple Choice Questions; 11TH AND 12TH CLASS FULL BOOK MCQS OF ALL SUBJECTS . (a) Haploid (b) Two-celled 64. Match the terms in Column I with the descriptions in Column II. The number of meiotic divisions, required to produce 400 seeds in a pea plant, is (a) 100 (b) 200 (c) 400 (d) 500. (b) They are present in the central cell. (d) Parenchymatous cells, Question 21. (b) Seed (c) Antipodals and primary endosperm cell. Or Mention the common function that endosperm and perisperm perform. (a) Fusion of two eggs (d) Egg and antipodals. Students can solve NCERT Class 12 Biology Biotechnology: Principles and Processes MCQs … (b) Bicelled Match the terms in Column I with the descriptions in Column II. Answer: Explaination: The long tassels of com cob are the styles and stigmas; they are meant to easily trap the air-bome pollen grains. [NCERT Exemplar] (a) Monoecious plant bearing unisexual flowers. 35. 2nd year biology short question notes, fsc biology MCQs … Answer: Explaination: It is used by the embryo for nutrition during seed germination. (a) Diploid (b) Triploid (c) Tetraploid (d) Pentaploid, 4. (d) Carthamus, Question 20. 39. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest exam pattern. Describe the structure of the cell (s) that guide (s) the pollen tube to enter the embryo sac. Why do com cobs have long tassels? – Cotyledons have reserve food materials that are used by the embryo during germination of the seed. Which one of these statements is incorrect? NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12. Double fertilization means: (d) None of these, Question 5. Free PDF Download of CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 2 Sexual Reproduction in Flowering Plants. (b) Ground tissue (d) P. Maheshwari, Question 18. (a) Embryo (b) Embryo sac (c) Synergid (d) Endosperm, 3. In the grass family, the single cotyledon is called ______ . We have provided Sexual Reproduction in Flowering Plants Class 12 Biology MCQs Questions with Answers to help students understand the concept very well. What happens to the endospenn in seeds like castor? (c) Flowers often have single ovule. Check important multiple-choice questions (MCQs) with answers for CBSE Class 12 Maths board exam 2020 & prepare for the upcoming CBSE Maths board exam 2020. (a) Archegonium The development of fruits without fertilisation of the ovary, is called (a) parthenogenesis (b) parthenocarpy (c) agamospermy (d) apomixis, 5. (i) The flowers do not produce nectar. Answer: Explaination: Tapetum is the innermost. Answer: Explaination: Nectar/pollen robbers are those floral visitors which consume pollen or nectar without bringing about pollination. 62. Totipotency is An indispensable part of NEET exams is the NEET Biology section covering 50% of the marks. (c) Five-celled Click one of our representatives below and we will get back to you as soon as possible. Given below is a section of a maize grain. Students who can Practice CBSE Class 12 Biology Multiple Choice Questions with Answers to improve your score in Board Exams. This test is objective type and consists of Biology MCQs. (ii) The pollen grains have mucilaginous covering. 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Answer: Explaination: (a) Chalaza represents the basal part and (b) embryo sac, the female gametophyte. Answer: Explaination: A – 4, B – 3, C – 2, D – 1. Dehydration and _____ of mature seeds are crucial for storage of seeds. 37. (d) Pedicel. [Delhi 2013C; HOTS]. [AI 2016C]. (a) Maize (b) Strassburger Answer: Explaination: Since the tapetum nourishes the developing pollen grains, their development is impaired. Parthenogenesis is common in : Why is banana referred to as a parthenocarpic fruit? (a) Nucellus (b) Outer integument (c) Ovary wall (d) Inner integument. (c) Hetorostyle AbilobeddithecousantherhaslOOmicrospore mother cells per microsporangium. Which of the following floral parts forms the pericarp after fertilisation? Haploid plants develop by pollen are called …….. [True/False], 28. Mention two environmental factors that affect pollen viability. Question 1. Answer: Explaination: âSelf-pollenâ means the pollen grains from the same flower (as of the stigma) or pollen from other flowers of the same plant. Commonly in a mature fertilized ovule n, 2n, 3n conditions are respectively found in : Pollination by snails is called: Mention the common function that cotyledons and nucellus perform. Why are cleistogamous flowers invariably autogamous? Answer: Explaination: (a) Xenogamy. Answer: Explaination: Vallisneria shows true hydrophily, i.e. Development of fruit without fertilizations is: 8. 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Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. (d) None of these, Question 4. 60. Physics MCQs for Class 12 all Chapter | F.Sc. The outermost layer of endosperm in a maize grain is known as ______ . Here you will find Chapter Wise NCERT MCQ Questions for Class 12 Biology with Answers PDF Free Download based on the important concepts and topics given in the textbook. 14. 38. Development of ovary into fruit without fertilisation. NCERT, CBSE, MCQ Questions for Class 12 BIOLOGY Chapter 1, Chapter 2, Chapter 3, Chapter 4, Chapter 5, Chapter 6. Qasim Tariq 06-12-2018 MCQs If you are in search of Multiple Choice Questions Notes of Mathematics Class XII (Mathematics Book-2 MCQs) then you are at right place. November 13, 2019 by Veerendra. [CBSE Sample Paper 2013] (a) The pollen grains are sticky. (b) between different flowers of the same plant. Who discovered fertilization? (b) Mango (d) Nawaschin, Question 22. (d) 20, Question 23. (c) Parthenocarpy (a) Funicle (d) Development of tissues of all kinds from a cell in a medium, Answer: (c) Development of tissues of all kinds from a cell in a medium, Question 15. [Foreign 2013]. (d) Polyembryoni, Question 29. Why is it so? 11th Class … 73. 69. [A t 2014]. 48. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. We have provided Sexual Reproduction in Flowering Plants Class 12 Biology MCQs … (d) Parallel to funiculus, Answer: (c) In straight line with funiculus, Question 11. (c) By insect educatedzone.com provides … Find Chapter wise free online test of Biology Class 12. Answer: Explaination: (a) The other two nuclei are called polar nuclei. 18. (a) What term is given to the other two nuclei? The best app for CBSE students now provides Sexual Reproduction in Flowering Plants class 12 Notes latest chapter … (b) Diploid Answer: Explaination: Pollen grains of Vallisneria are protected from wetting by the mucilaginous covering. (b) B. G L. Swami Why do the pollen grains of Vallisneria have a mucilaginous covering? Carpels in a flower are fused together. (c) Fusion of two polar nuclei with one male gamete 71. Answer: Explaination: Two advantages of seeds to man: (i) Seeds are stored and used as food. In a breeding experiment, the selected male parent is diploid and the female parent is tetraploid. Students who can Practice CBSE Class 12 Biology … (a) omithophily Answer: Explaination: Dormancy and dehydration are crucial for storage of seeds; the farmer dehydrates the dormant seeds and stores the seeds for raising a new crop in the next season. [Foreign 2013]. Answer: Explaination: Filiform apparatus refers to the special cellular thickenings in the synergids, towards micropylar tip. Name the part of the flower, which the tassels of the com cob represent. here is biology 2nd year notes all chapters with multiple choice questions MCQs.with Answer Keys.These are ... MDCAT Guide Share all Chapter of Biology Notes and MCQS For you.Take ... 11th Class,1,12th class,4,1st year date sheet 2020,1,2nd year Date Sheet,1,9th Class,2,9th Class Result,3,9th Class Result 2019,1,9th Class … Carolus Linnaeus used a two-kingdom classification which includes Plantae and animals. Students can solve NCERT Class 12 Biology Sexual Reproduction in Flowering Plants MCQs Pdf with Answers to know their preparation level. In Zostera, the pollen grains are long and ribbon-like and released inside the water. Free PDF Download of CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 2 Sexual Reproduction in Flowering Plants. (a) Strassburger Meiosis does not occur in the organisms showing haplontic life cycle. [AI 2013C] Or Why is banana considered a good example of parthenocarpy? (c) Corchorus An orthrotropous ovule is one in which micropyle and chalaza are : We hope the given Biology MCQs for Class 12 with Answers Chapter 2 Sexual Reproduction in Flowering Plants will help you. [Delhi 2013,10; HOTS]. (b) Heterostyly (b) Dioecious plant bearing only male or female flowers. Answer: Explaination: (iii) is incorrect. 53. 81. Answer: Explaination: Styles and stigmas. (c) Antipodal, synergid and primary endosperm nucleus. Check the below NCERT MCQ Questions for Class 12 Biology Chapter 2 Sexual Reproduction in Flowering Plants with Answers Pdf free download. All of the following structures are found in angiosperms except ? 23. Give any one characteristic of pollen grains produced by such flowers. Biology MCQ Questions for Class 12 … 80. (b) Zoophily Biology 2 MCQ Tests Campus platform has a collection of 17 questions added to 22 chapters of Physics 10th Class. Double fertilization in angiosperms was discovered by: In apple, the ______ also contributes to fruit formation and becomes edible. Answer: Explaination: Germ pores are those places on the exine of a pollen grain, where sporopollenin is thin or absent and gives the appearance of an aperture. Give the technical term for the type of pollination (a) which ensures genetic recombination. Closed flower: Name the mechanism responsible for the formation of seed without fertilisation in angiosperms. We have provided Biological Classification Class 11 Biology MCQs … CBSE, Class 12 BIOLOGY MCQ, (MCQ) NCERT OBJECTIVE QUESTION WITH ANSWER, CHAPTER 11, CHAPTER 22, CHAPTER 13, CHAPTER 4, CHAPTER 5, CHAPTER 16, CHAPTER 171, CHAPTER 18, CHAPTER 9, CHAPTER 10. 22. The given Biology MCQs comprise all chapters and units within the Biology syllabus for Class 11 and 12. (d) Tetraploid, Question 13. pollination by water. (a) Malecophily Pollination by bats is called: (d) Megagametophyte, Question 14. (d) Hydrophily, Question 25. In order for you to see this page as it is meant to appear, we ask that you please re-enable your Javascript! Answer: Explaination: – Wind is the pollinating agent. Answer: Explaination: They help in the nourishment of the embryo, with the reserve food materials stored in them. Removal of Stamens from the bisexual flower bud. Here comes the role of chapter wise Test of Chapter 2 - Biological Classification. 63. (b) Citrus (c) Triploid In Capsella the endosperm in generally: Biological Classification MCQ Questions /objective with answers Class 11 Biology Chapter 2. (c) Vascular bundle (c) Megaspore Biology MCQ Questions for Class 12 with Answers Pdf Download. [Foreign 2014]. (b) Xenogamy How does a farmer use the dormancy of seeds to his advantage? [Delhi 2010; HOTS]. The following statements describe the wind-pollinated plants. 45. It is called: Free PDF Download of CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 2 Sexual Reproduction … Answer: Explaination: (a) The pollen grains are sticky. Banana produces fruits, but is propagated only by vegetative means. 16. Students can solve NCERT Class 12 Biology Sexual Reproduction in Flowering Plants MCQs … (c) Monoecious plant with bisexual flowers. Answer: Explaination: Only one megaspore mother cell becomes differentiated in an ovule. Identify âAâ in the figure showing a stage of embryonic development in a dicot plant and mention its function. The outer integument of the ovule develops into _____ after fertilisation. (b) plant is dioecious and bears both pistillate and staminate flowers. [True/False], 27. (b) Megaspore mother cell (d) Hydrophily, Question 26. Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Check the below NCERT MCQ Questions for Class 11 Biology Chapter 2 Biological Classification with Answers Pdf free download. (c) Embryo Answer: Explaination: Oxalis and Viola or pea produce cleistogamous flowers, in which anthers and stigma lie close to each other; when the anthers dehisce in the flower buds, the pollen grains fall on the stigma and fertilization is effected leading to assured seed-set. 1. (c) Anther Answer: Explaination: Thalamus in strawberry and ovary in guava. Register online for Biology … From among the situations given below, choose the one that prevents both autogamy and geitonogamy. [True/False], 30. In an ovule meiotic takes place in: Hi there! Answer: Explaination: 1600 male gametophytes. Prepare from hundreds of questions for Chapter 2 biology 11th class. (c) Nucellus The hollow foliar structure that encloses the leaf primordia in a grass embryo, is called ______ .
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