This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 1 Reproduction In Organisms – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following statement about parthenogenesis is incorrect? A) Development of new organism from sperm without fertilization. B) It is found in certain lizards and turkey. C) Syngamy do not occur. D) In rotifers and honeybees, female gametes develops directly into new organism without fertilization. Show Answer Correct Answer: A) Development of new organism from sperm without fertilization. 2. The plants which flower more than once, their inter-flowering period represents ..... phase. A) Juvenile. B) Reproductive. C) Senescent. D) None of the above. Show Answer Correct Answer: A) Juvenile. 3. Sexual reproduction uses ..... and asexual reproduction uses ..... answer choices A) Sex cells, body cells. B) Body cells, sex cells. C) All the above. D) None of the above. Show Answer Correct Answer: A) Sex cells, body cells. 4. Bulbil is a vegetative propagule in A) Agave. B) Water hyacinth. C) Bryophyllum. D) Ginger. Show Answer Correct Answer: A) Agave. 5. Provide examples of organisms that reproduce asexually. A) Frogs, fish, birds. B) Dogs, cats, horses. C) Bacteria, yeast, strawberries, spider plants. D) Oak trees, sunflowers, dandelions. Show Answer Correct Answer: C) Bacteria, yeast, strawberries, spider plants. 6. Which of the following describes the main advantages of sexual reproduction? A) No new gene combos can arise. B) Requires lots of time/energy. C) Genetic diversity. D) Looks identical to the parent. Show Answer Correct Answer: C) Genetic diversity. 7. What is the form of natural vegetative propagation that occurs when the leaves of a plant detach from from the parent plant and form a new plant? A) Runners. B) Bulb. C) Root modification. D) Leaf modification. Show Answer Correct Answer: D) Leaf modification. 8. What is the genetic makeup of the offspring in sexual reproduction? A) Genetically diverse. B) Clones. C) Half of each parent. D) Different from both parents. Show Answer Correct Answer: A) Genetically diverse. 9. What is the process called when the embryo develops into a seedling? A) Pollination. B) Germination. C) Fertilization. D) Photosynthesis. Show Answer Correct Answer: B) Germination. 10. Which of the following is false about external fertilization? A) Organisms showing external fertilization exhibit great synchrony between the sexes and release gametes. B) Gametes are produced in large number in water to enhance the chances of fertilization. C) A large number of gametes are wasted. D) A major advantage is that the offsprings are protected from predators and there is a great chance of their survival upto adult hood. Show Answer Correct Answer: D) A major advantage is that the offsprings are protected from predators and there is a great chance of their survival upto adult hood. 11. Fission begins in a prokaryote when the DNA molecule is ..... , A) Split. B) Copied. C) Destrited. D) Enhanced. Show Answer Correct Answer: B) Copied. 12. During unfavourable conditions, Amoeba multiplies by A) Binary fission. B) It just dies. C) Sporulation. D) Budding. Show Answer Correct Answer: C) Sporulation. 13. ..... is an example of anaerobes A) Yeast. B) Humans. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yeast. 14. A few statements are given with regard to sexual reproductioni. Sexual reproduction does not always require two parents.ii. Sexually reproduction generally involves gametic fusion.iii. Meiosis never occurs in sexual reproduction.iv. External fertilisation is a rule during sexual reproduction.Choose the correct options from the following options. A) I and iv. B) I and ii. C) Ii and iii. D) I and iv. Show Answer Correct Answer: B) I and ii. 15. A sea star has one of its arms break off. That arm grows into its own separate organism through ..... A) Chromosomes. B) Sexual reproduction. C) Regeneration. D) Spindle fibers. Show Answer Correct Answer: C) Regeneration. 16. What is the purpose of pollen in a flower? A) To transfer germ-cells. B) To attract pollinators. C) To protect the reproductive parts. D) To produce seeds. Show Answer Correct Answer: A) To transfer germ-cells. 17. Endogenous budding occurs in A) Fresh water sponge. B) Hydra. C) Marine sponge. D) Obelia. Show Answer Correct Answer: A) Fresh water sponge. 18. What are the two main types of reproduction? A) Asexual reproduction and sexual reproduction. B) Binary fission and budding. C) Pollination and fertilization. D) Cloning and regeneration. Show Answer Correct Answer: A) Asexual reproduction and sexual reproduction. 19. Which organisms typically reproduce asexually? A) Most animals. B) Bacteria. C) Most plants. D) All eukaryotes. Show Answer Correct Answer: B) Bacteria. 20. What is the process called when gametes unite to make a new organism? A) Crossing over. B) Budding. C) Mitosis. D) Fertilization. Show Answer Correct Answer: D) Fertilization. 21. In humans, fertilisation takes place in A) Uterus. B) Ovary. C) Fallopian tube. D) Vagina. Show Answer Correct Answer: C) Fallopian tube. 22. There are various types of reproduction. The type of reproduction adopted by an organism depends on: A) The habitat and morphology of the organism. B) Morphology of the organism. C) Morphology and physiology of the organism. D) The organism's habitat, physiology and genetic makeup. Show Answer Correct Answer: D) The organism's habitat, physiology and genetic makeup. 23. Bamboo species flowers: A) Only once in life time. B) Every year. C) Twice a year. D) Once in 12 years. Show Answer Correct Answer: A) Only once in life time. 24. Development of fruit without fertilization is called: A) Parthenocarpy. B) Cell division. C) Apomixis. D) Parthenogenesis. Show Answer Correct Answer: A) Parthenocarpy. 25. In which pair, plants can be propagated vegetatively? A) Bryophyllum and Kalanchoe. B) Chrysanthemum and Agave. C) Agave and Kalanchoe. D) Asparagus and Bryophyllum. Show Answer Correct Answer: A) Bryophyllum and Kalanchoe. 26. Menstrual cycle is found in A) Primates. B) Humans. C) Non-Primates. D) All sexually reproducing organisms. Show Answer Correct Answer: A) Primates. 27. Which unicellular organism shows binary fission in a definite orientation in relation to whip-like structures? A) Yeast. B) Leishmania. C) Plasmodium. D) Amoeba. Show Answer Correct Answer: B) Leishmania. 28. What is the result of the uniting of gametes in sexual reproduction? A) Blastocyst. B) Fetus. C) Embryo. D) Zygote. Show Answer Correct Answer: D) Zygote. 29. When offspring is produced by a single parent with or without the involvement of gamete formation, it is called ..... A) Asexual Reproduction. B) Sexual Reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: A) Asexual Reproduction. 30. PARTHENOGENESIS OCCURS IN A) ROTIFERS. B) HONEY BEES. C) TURKEY. D) ALL OF THE ABOVE. Show Answer Correct Answer: D) ALL OF THE ABOVE. 31. In seeded plants male gametes are transferred to the egg cell by A) Air. B) Pollen tube. C) Insects. D) Water. Show Answer Correct Answer: B) Pollen tube. 32. The process that produces haploid sex cells is ..... A) Interphase. B) Fission. C) Mitosis. D) Meiosis. Show Answer Correct Answer: D) Meiosis. 33. What are the structures involved in reproduction in bread mould (Rhizopus)? A) Sporangia and sporangiospores. B) Hyphae and mycelium. C) Stolons and rhizoids. D) Asci and ascospores. Show Answer Correct Answer: A) Sporangia and sporangiospores. 34. If a diploid tomato cell has 24 chromosomes, how many chromosomes will the tomato's sex cells have? A) 6. B) 12. C) 24. D) 48. Show Answer Correct Answer: B) 12. 35. What is regeneration? A) A method of reproduction in plants where new plants grow from seeds. B) The process by which some organisms can regrow lost body parts or develop from fragments. C) A technique used in medicine to repair damaged tissues. D) The ability of animals to adapt to their environment over time. Show Answer Correct Answer: B) The process by which some organisms can regrow lost body parts or develop from fragments. 36. Which of the following organisms does NOT primarily reproduce asexually? A) Protists. B) Archaea. C) Mammals. D) Bacteria. Show Answer Correct Answer: C) Mammals. 37. Which is NOT a form of asexual reproduction? A) Binary fission. B) Parthenogenesis. C) Budding. D) Meiosis. Show Answer Correct Answer: D) Meiosis. 38. What is the role of chromosomes in reproduction? A) Chromosomes are responsible for the physical structure of the cell. B) Chromosomes are involved in the production of energy within the cell. C) Chromosomes carry genetic information that is passed from parents to offspring. D) Chromosomes help in the digestion of food in the cell. Show Answer Correct Answer: C) Chromosomes carry genetic information that is passed from parents to offspring. 39. Oestrous cycle is reported in: A) Cows and sheep. B) Humans and monkeys. C) Chimpanzees and gorillas. D) None of these. Show Answer Correct Answer: A) Cows and sheep. 40. Which hormone initiates puberty in males? A) Testosterone. B) Progesterone. C) Insulin. D) Estrogen. Show Answer Correct Answer: A) Testosterone. 41. In majority of organisms male gamete is ..... and female gamete is ..... A) Non-motile, motile. B) Non-motile, non-motile. C) Motile, stationary (non-motile). D) Motile, motile. Show Answer Correct Answer: C) Motile, stationary (non-motile). 42. What is formed after the fusion of the male and female germ-cells in a flower? A) Zygote. B) Ovule. C) Embryo. D) Pollen grain. Show Answer Correct Answer: A) Zygote. 43. Which a sexual reproduction shows equal division A) Budding. B) Binary fission. C) All the above. D) None of the above. Show Answer Correct Answer: B) Binary fission. 44. Which of the following is NOT a form of asexual reproduction? A) Animal regeneration. B) Vegetative reproduction. C) Meiosis. D) Budding. Show Answer Correct Answer: C) Meiosis. 45. What is the Fleshy and sweet part of the fruit or of the Pericarp? A) Epicarp. B) Endocarp. C) Mesocarp. D) Seed. Show Answer Correct Answer: C) Mesocarp. 46. In haplontic organisms, gametes are produced by ..... cell division. A) Meiotic. B) Mitotic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Mitotic. 47. Heavy physical exercise leads the cells to breathe ..... A) Aerobically. B) Anaerobically. C) All the above. D) None of the above. Show Answer Correct Answer: B) Anaerobically. 48. In Ceratium, Asexual reproduction takes place by which type of binary fission A) Longitudinal. B) Oblique. C) Simple. D) Transverse. Show Answer Correct Answer: B) Oblique. 49. What is the advantage of genetic variety in sexual reproduction? A) Cloning. B) Environmental adaptation. C) Efficiency. D) Asexual reproduction. Show Answer Correct Answer: B) Environmental adaptation. 50. Cockroaches use ..... to exchange gases. A) Spiracles. B) Trachea. C) Lungs. D) Gills. Show Answer Correct Answer: A) Spiracles. 51. Micropropagation is a technique: A) For production of somatic hybrids. B) For production of true plants. C) For production of haploid plants. D) For production of somaclonal plants. Show Answer Correct Answer: B) For production of true plants. 52. Which of the following is considered as connecting link between the two generations A) Gametes. B) Embryo. C) Zygote. D) Offspring. Show Answer Correct Answer: C) Zygote. 53. Tail of wall lizard is an example for which type of regeneration A) Morphyllaxis. B) Repairative. C) Restorative. D) Both b and c. Show Answer Correct Answer: C) Restorative. 54. Which of the following is considered as vegetative phase in plants A) Senescent Phase. B) More than one option is correct. C) Juvenile Phase. D) Reproductive phase. Show Answer Correct Answer: C) Juvenile Phase. 55. Menstrual cycle is reported in- A) Primates like humans, apes & monkey. B) Only monkey. C) Only humans. D) Only apes. Show Answer Correct Answer: A) Primates like humans, apes & monkey. 56. Reproduction that combines genetic material of two organisms A) Fertilization. B) Asexual Reproduction. C) Budding. D) Sexual Reproduction. Show Answer Correct Answer: D) Sexual Reproduction. 57. What does ovary develop into after fertilization? A) Flower. B) Fruit. C) Ovule. D) Seed. Show Answer Correct Answer: B) Fruit. 58. Rudolph was walking around his family farm. He knows that in recent years the amount of rain has decreased, and notices that this has caused a change to the local flora. Which observation might be a true statement? (MS-LS1-5) A) A. The size of the plants on the farm have increased in size. B) B. There has been no noticeable change in the size of the local flora. C) C. The size of the plants on the farm have decreased in size. D) None of the above. Show Answer Correct Answer: C) C. The size of the plants on the farm have decreased in size. 59. What is a key characteristic of offspring in asexual reproduction? A) Genetic diversity. B) None of the above. C) Identical to the parent. D) Different from both parents. Show Answer Correct Answer: C) Identical to the parent. 60. 'Clones' are individuals that have exactly the same A) Genetic makeup. B) Physiology. C) Growth rate. D) Lifespan. Show Answer Correct Answer: A) Genetic makeup. 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