Which one between the two will lead to inbreeding depression and why ? (i) What is the diagram depicts ? !I am Faiz Azmi In this video, I thoroughly discussed about geitnogamy and xenogamy ways of pollination. In order to score well in CBSE board exam 2018 result, Class 12 th students having Physics, Chemistry, Biology and Maths as one of their subjects must … Transfer of pollen grains from anther to stigma is termed as Pollination. Contents. What is the advantage of production of the two types of flowers on a same plant ? Pollination types: Fig: Types of Pollination. (ii) Label the parts 1, 2, 3 and 4. Give Example? Why is date palm referred to as dioecious? SET-I; ... Differentiate between geitonogamy and xenogamy in plants. This transfer of pollen grains occurs with the help of pollinating agents like wind, water, insects, birds etc. class XI session 2019-20 LESSON PLAN 2 Types of pollination (autogamy, chasmogamy, cleistogamy, Geitonogamy, xenogamy), adaptations in flowers pollinated by wind, water and insects, advantages of self and 11. 14 CBSE BIOLOGY – XII SECTION — D Q.28. Vegetative propagation – definition, vegetative propagules (tuber of potato, ... xenogamy), adaptations in flowers pollinated by wind, water and insects. 9. ISC Class 12 Biology Syllabus. CBSE previous Year Solved Papers Class 12 Biology Delhi 2011. Free PDF download of Important Questions for CBSE Class 12 Biology Chapter 2 - Sexual Reproduction in Flowering Plants prepared by expert Biology teachers from the latest edition of CBSE (NCERT) books. Anthers and the stigma lie close to each other in a way that self-pollination occurs, i.e. November 5, 2016 by Nirmala Leave a Comment. 10.What is parthenogenesis. 7. POLLINATION "Pollination is defined as the process of transfer of pollen grains from anther to the stigma of the same flower or of different flower of the same species. CBSE previous Year Solved Papers Class 12 Biology Delhi 2011. 1. Answer: In this article we are going to discuss the important points for the Class 12 Biology chapter 2, ... Xenogamy-Transfer of pollen grains from anther to the stigma of a different plant. What are … Practising given Class 12 Biology Chapterwise Important Questions with solutions will help in scoring more marks in your Board Examinations. (iv) What is the role of the parts 2 label in diagram.OR (i) What are Chasmogamous and Cliestogamous plants ?Give one example. (iii) Name and given one functions of the hormone secreted by the parts 3. Mention its disadvantages ? 8. What is a meiocyte? 204 PAPER I –THEORY – 70 Marks All structures (internal and external) are required ... definition of clone. Define geitonogamy and xenogamy and give advantage of self pollinattion and cross pollinationIn geitonogamy pollen grains of one flower of a plant moves to stig Sexual Reproduction in Flowering Plants Important Questions for CBSE Class 12 Biology Pollination. ... Xenogamy. (i)Autogamy is the transfer of pollen grains from anther to the stigma of the same flower. Define external fertilization? 1.Pollination is the transfer of pollen grains from anther to the stigma of a pistil. Compare monoecious&dioeciousplants ? Mention the reason for difference in ploidy of zygote and primary endosperm nucleus in angiosperm 12.What are vegetative propagules. Class 12 Biology Sexual Reproduction In Plants: Pollination: Pollination. Define Parthenocarpy. Hii !! Biology: CLASS XII: SESSION 2020-21: i.e. Discussed about geitnogamy and xenogamy ways of Pollination in your Board Examinations All structures ( internal and external ) required. 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