This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 1 Reproduction In Organisms – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Read the following statements carefully and identify the correct statement: A) Oestrous cycle occurs in primates like cow, sheep, dog only. B) Oestrous cycle occurs in all primates. C) Menstrual cycle occurs in primates like monkey and apes and humans. D) Menstrual cycle occurs in all non primates. Show Answer Correct Answer: C) Menstrual cycle occurs in primates like monkey and apes and humans. 2. Select the option which arranges the given organisms in ascending order of their life span. A) Parrot < Crow < Butterfly < Banyan tree. B) Butterfly < Crow < Parrot < Crocodile. C) Fruit fly < Crocodile < Parrot < Banyan tree. D) Parrot < Tortoise < Dog < Crow. Show Answer Correct Answer: C) Fruit fly < Crocodile < Parrot < Banyan tree. 3. If a sex cell has 10 chromosomes, how many chromosomes will there be after fertilization? A) 5. B) 10. C) 15. D) 20. Show Answer Correct Answer: D) 20. 4. Lifespan of crocodiles is A) 15 yrs. B) 30 yrs. C) 45 yrs. D) 60 yrs. Show Answer Correct Answer: D) 60 yrs. 5. Anaerobes respire A) Using Oxygen. B) Without Using Oxygen. C) All the above. D) None of the above. Show Answer Correct Answer: B) Without Using Oxygen. 6. Actinosphaerium exhibits A) Hologamy. B) Isogamy. C) Exogamy. D) Autogamy. Show Answer Correct Answer: D) Autogamy. 7. Can sexual reproduction occur without physical intercourse? A) Yes, in all organisms. B) No, never. C) Only in bacteria. D) Yes, in plants. Show Answer Correct Answer: D) Yes, in plants. 8. In flowering plants, the unisexual male flower is called A) Staminate. B) Pistillate. C) Monoecious. D) Dioecious. Show Answer Correct Answer: A) Staminate. 9. In which of the following water is essential for fertilization- A) Algae. B) Bryophytes. C) Pteridophytes. D) All. Show Answer Correct Answer: D) All. 10. If the number of chromosomes in the gamete of Rat is 21, then its meiocyte will have ..... number of chromosomes. A) 21. B) 42. C) 7. D) 10. Show Answer Correct Answer: B) 42. 11. Male and female flowers are present on same plant in all of these, except A) Cucurbits. B) Coconuts. C) Maize. D) Date palm. Show Answer Correct Answer: D) Date palm. 12. Which of the following animals do not show parthenogenesis? A) Honey bee. B) Rotifers. C) Ants. D) None of the above. Show Answer Correct Answer: C) Ants. 13. Sexual reproduction involves fusion of: A) Two gametes. B) Two zygotes. C) Two buds. D) Two stems. Show Answer Correct Answer: A) Two gametes. 14. Which phrases best identify characteristics of asexual reproduction? A) One parent, union of gametes, offspring similar to but not genetically identical to the parent. B) One parent, no union of gametes, offspring genetically identical to parents. C) Two parents, union of gametes, offspring similar to but not genetically identical to parents. D) Two parents, no union of gametes, offspring genetically identical to parents. Show Answer Correct Answer: B) One parent, no union of gametes, offspring genetically identical to parents. 15. A few statements with regard to sexual reproduction are given below:(i) Sexual reproduction does not always require two individuals(ii) Sexual reproduction generally involves gametic fusion(iii) Meiosis never occurs during sexual reproduction(iv) External fertilisation is a rule during sexual reproductionChoose the correct statements from the options below. A) (i) and (iv). B) (i) and (ii). C) (ii) and (iii). D) (i) and (iv). Show Answer Correct Answer: B) (i) and (ii). 16. Development of embryos without fertilization is known as ..... A) Parthenogenesis. B) Parthenocarpy. C) Parthenoperesis. D) Reproduction. Show Answer Correct Answer: A) Parthenogenesis. 17. What is the purpose of seed formation for a plant? A) To attract pollinators. B) To produce flowers. C) To store energy. D) To develop into a new plant. Show Answer Correct Answer: D) To develop into a new plant. 18. When a sea star breaks into fragments, each fragment develops into a new individual. This is an example of ..... answer choices A) Fragmentation. B) Parthenogenesis. C) Binary fission. D) Vegetative propagation. Show Answer Correct Answer: A) Fragmentation. 19. Haploid parent produces gamete by A) Meiosis. B) Mitosis. C) Amitosis. D) Both meiosis and mitosis. Show Answer Correct Answer: B) Mitosis. 20. In which reproduction is variation not seen? A) Sexual. B) Asexual. C) Cross-pollination. D) Fertilisation. Show Answer Correct Answer: B) Asexual. 21. All of the offspring of an organism have the same genetic material, which is identical to the parent organism? A) Makes its own food. B) Goes away. C) Live in a marine habitat. D) Reproduces asexually. Show Answer Correct Answer: D) Reproduces asexually. 22. Reproduction in which only one parent is involved is called? A) Sexual. B) Asexual. C) External. D) Internal. Show Answer Correct Answer: B) Asexual. 23. A multicellular, filamentous alga exhibits a type of sexual cycle in which the meiotic division occurs after the formation of zygote. The adult filament of this alga has A) Haploid vegetative cells and diploid gametogonia. B) Diploid vegetative cells and diploid gametogonia. C) Diploid vegetative cells and haploid gametogonia. D) Haploid vegetative cells and haploid gametogonia. Show Answer Correct Answer: D) Haploid vegetative cells and haploid gametogonia. 24. Zygote is formed as a result of: A) Fission. B) Budding. C) Fertilisation. D) Vegetative propagation. Show Answer Correct Answer: C) Fertilisation. 25. Which pair is incorrect A) Zoospores-chlamydomonas. B) Conidia-pencillium. C) Bulbil-agave. D) Offset-sponge. Show Answer Correct Answer: D) Offset-sponge. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 1 Reproduction In Organisms Quiz 1Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 2Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 3Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 4Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 5Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 6Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 7Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 8Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 9Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books