This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 1 Reproduction In Organisms – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Monkeys and Apes show ..... cycle and are ..... breeders. A) Oestrous; Seasonal. B) Oestrous; Continuous. C) Menstrual; Seasonal. D) Menstrual; Continuous. Show Answer Correct Answer: D) Menstrual; Continuous. 2. What is the role of meiosis in sexual reproduction? A) None of the above. B) Creating genetic variation. C) Reducing the chromosome number. D) Doubling the chromosome number. Show Answer Correct Answer: C) Reducing the chromosome number. 3. Which is a bisexual flower? A) Papaya. B) Corn. C) Mustard. D) Watermelon. Show Answer Correct Answer: C) Mustard. 4. What is formed when an egg cell and sperm cell are joined together? A) Zygote. B) Diploid cell. C) Haploid cell. D) Sister cell. Show Answer Correct Answer: A) Zygote. 5. Which of the following is not a hermaphrodite? A) Leech. B) Earthworm. C) Sponge. D) Ascaris. Show Answer Correct Answer: D) Ascaris. 6. This word means that a cell contains two complete sets of chromosomes like found in normal body cells (1 from each parent) A) Diploid. B) Haploid. C) Zypher. D) Embregglio. Show Answer Correct Answer: A) Diploid. 7. Which sex chromosomes are present in all mature human sperm cells? A) Both X and Y chromosomes. B) Either X or Y chromosomes. C) Only X chromosomes. D) Only Y chromosomes. Show Answer Correct Answer: B) Either X or Y chromosomes. 8. In earthworms self fertilisation does not occur because A) Hypogyny. B) Epigyny. C) Protogyny. D) Protandry. Show Answer Correct Answer: D) Protandry. 9. Binary fission is found in A) Amoeba. B) Paramecium. C) Planaria. D) All of these. Show Answer Correct Answer: D) All of these. 10. What is the mode of reproduction in amoeba? A) Binary fission. B) Binary fission and multiple fission. C) Binary fission and conjugation. D) Multiple fission only. Show Answer Correct Answer: B) Binary fission and multiple fission. 11. GAMETES ARE FORMED DURING A) PRE-FERTILIZATION. B) FERTILIZATION. C) POST-FERTILIZATION. D) ALL OF THE ABOVE. Show Answer Correct Answer: A) PRE-FERTILIZATION. 12. What is the word Syngamy means A) Egg cell. B) Ovulation. C) Fusion of male and female gamete. D) None of these. Show Answer Correct Answer: C) Fusion of male and female gamete. 13. Pollination by ants is A) Malacophily. B) Myrmecophily. C) Entomophily. D) Ornithophily. Show Answer Correct Answer: B) Myrmecophily. 14. How many cells are produced by a reproductive cell during meiosis? A) 2 cells. B) 3 cells. C) 4 cells. D) 5 cells. Show Answer Correct Answer: C) 4 cells. 15. What is the significance of sexual mode of reproduction? A) It allows for the production of new generations without the involvement of two individuals. B) It ensures the survival of the species by generating variations. C) It speeds up the process of making variants. D) It helps in the control of the cellular apparatus by the DNA. Show Answer Correct Answer: B) It ensures the survival of the species by generating variations. 16. In which of the following plants, sepals do not fall off after fertilisation and remain attached to the fruit? A) Brinjal. B) Cucumber. C) Papaya. D) Bitter gourd. Show Answer Correct Answer: A) Brinjal. 17. Hydra produce offspring by growing the new individual on the body of the parent. This is an example of ..... answer choices A) Budding. B) Fission. C) Tubers. D) Regeneration. Show Answer Correct Answer: A) Budding. 18. Which of the following plant flowers once in 12 years? A) Mangifera indica. B) Strobilanthus kunthiana (Neelakuranji). C) Helianthus annus. D) Papver somniferum. Show Answer Correct Answer: B) Strobilanthus kunthiana (Neelakuranji). 19. Which of the following is not correct regarding sexual reproduction? A) It is usually biparental. B) Gametes are always formed. C) It is a slow process. D) It involves only mitosis. Show Answer Correct Answer: D) It involves only mitosis. 20. Life begin in all sexually reproducing organisms as a A) Single celled zygote. B) Double celled zygote. C) Haploid zygote. D) Haploid gametes. Show Answer Correct Answer: A) Single celled zygote. 21. Which of these animals has highest lifespan? A) Elephant. B) Tortoise. C) Horse. D) Human. Show Answer Correct Answer: B) Tortoise. 22. Ginger is vegetatively propagated through A) Eyes. B) Rhizome. C) Bulbil. D) Offset. Show Answer Correct Answer: B) Rhizome. 23. Gametogenesis refers to the process of A) Fusion of two gametes. B) Fusion of two gametangia. C) Formation of two types of gametes. D) Formation of male gametes. Show Answer Correct Answer: C) Formation of two types of gametes. 24. How many times does a body cell divide during mitosis? A) 0. B) 1. C) 2. D) 3. Show Answer Correct Answer: B) 1. 25. Type of reproduction that as the greatest chance of surviving a disaster.answer choices A) Asexual. B) Sexual. C) Monolinguistic. D) Polygenic. Show Answer Correct Answer: B) Sexual. ← 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 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 10Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books