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Biology MCQs for Class 12 with Answers Chapter 2 Sexual Reproduction in Flowering Plants and Quiz

CBSE Biology Multiple Choice Questions for Class 12 with Answers Chapter 2 Sexual Reproduction in Flowering Plants. Biology MCQs for Class 12 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Biology Sexual Reproduction in Flowering Plants MCQs Pdf with Answers to know their preparation level. gkSchools.com

Sexual Reproduction in Flowering Plants Class 12 Biology MCQs Question And Answer

Sexual reproduction in flowering plants is an important chapter in Class 12 Biology. It is frequently tested in CBSE exams, and preparing through multiple-choice questions (MCQs) is an effective way to boost your exam performance. In this section, we offer a comprehensive set of MCQs that cover the key concepts of sexual reproduction in flowering plants, as outlined in the NCERT textbook for Class 12. These MCQs are designed to help students familiarize themselves with the exam pattern and improve their understanding of the subject matter. Download the free PDF to prepare effectively for your exams and secure top marks in this crucial chapter.

 

1. How many microspore mother cells are required to produce 1000 microspores/pollen grains?
(a) 100
(b) 150
(c) 200
(d) 250

Answer >>

Answer: (d) 250

 

2. Which of the following represents the female gametophyte in angiosperms?
(a) Embryo
(b) Embryo sac
(c) Synergid
(d) Endosperm

Answer >>

Answer: (b) Embryo sac

 

3. In a breeding experiment, the selected male parent is diploid and the female parent is tetraploid. What will be the ploidy level of the endosperm that will develop after double fertilisation?
(a) Diploid
(b) Triploid
(c) Tetraploid
(d) Pentaploid

Answer >>

Answer: (d) Pentaploid

 

4. The development of fruits without fertilisation of the ovary, is called
(a) Parthenogenesis
(b) Parthenocarpy
(c) Agamospermy
(d) Apomixis

Answer >>

Answer: (b) Parthenocarpy

 

5. 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

Answer >>

Answer: (b) Geitonogamy

 

6. The number of meiotic divisions, required to produce 400 seeds in a pea plant, is
(a) 100
(b) 200
(c) 300
(d) 500

Answer >>

Answer: (d) 500

 

7. What is the function of filiform apparatus in an angiospermic embryo sac?
(a) Brings about opening of the pollen tube
(b) Guides the pollen tube into a synergid
(c) Prevents entry of more than one pollen tube into a synergid
(d) None of these

Answer >>

Answer: (b) Guides the pollen tube into a synergid

 

8. The female gametophyte of a typical dicot at the time of fertilisation is
(a) 8 – celled
(b) 7 – celled
(c) 6 – celled
(d) 5 – celled

Answer >>

Answer: (b)7 – celled

 

9. Polygonum type of embryo sac is
(a) 8 – nucleate, 7 – celled
(b) 8 – nucleate, 8 – celled
(c) 7 – nucleate, 7 – celled
(d) 4 – nucleate, 3 – celled

Answer >>

Answer: (a)8 – nucleate, 7 – celled

 

10. Both chasmogamous and cleistogamous flowers are present in
(a) Helianthus
(b) Commelina
(c) Rosa
(d) Gossypium

Answer >>

Answer: (b)Commelina

 

11. Even in absence of pollinating agents seed-setting is assured in
(a) Commelina
(b) Zostera
(c) Salvia
(d) Fig

Answer >>

Answer: (a)Commelina

 

12. Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in
(a) papaya
(b) bottle gourd
(c) maize
(d) all of these.

Answer >>

Answer: (a)papaya

 

13. Feathery stigma occurs in
(a) pea
(b) wheat
(c) Datura
(d) Caesalpinia

Answer >>

Answer: (b)wheat

 

14. Feathery stigma occurs in
(a) bees
(b) butterflies
(c) birds
(d) wind

Answer >>

Answer: (d)wind

 

15. Which of the following is not a water pollinated plant ?
(a) Zostera
(b) Vallisneria
(c) Hydrilla
(d) wind

Answer >>

Answer: (d)wind

 

16. Spiny or sticky pollen grains and large, attractively coloured flowers are associated with
(a) hydrophily
(b) entomophily
(c) ornithophily
(d) anemophily

Answer >>

Answer: (b)entomophily

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