This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > How Do Organisms Reproduce > Class 10 Science Chapter 8 How Do Organisms Reproduce – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 7 (35 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A human zygote should have ..... chromosomes inside. A) 46. B) 23. C) 64. D) 92. Show Answer Correct Answer: A) 46. 2. The process by which an organism produces others of its same kind. A) Sexual Reproduction. B) Budding. C) Reproduction. D) Asexual Reproduction. Show Answer Correct Answer: C) Reproduction. 3. What factors are responsible for the rapid growth of Rhizopus on the bread? A) Formation of sporangia. B) Large number of spores. C) Presence of hyphae. D) All of these. Show Answer Correct Answer: B) Large number of spores. 4. In a potato, vegetative propagation takes place by: A) Leaf. B) Root. C) Stem tuber. D) Grafting. Show Answer Correct Answer: C) Stem tuber. 5. Asexual reproduction is associated with what type of cell division? A) Mitosis. B) Meiosis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Mitosis. 6. What part of male reproductive system that function as a sac that holds the testes? A) Vas deferens. B) Scrotum. C) Penis. D) Prostate gland. Show Answer Correct Answer: B) Scrotum. 7. Bryophyllum reproduces by means of ..... A) Leaf. B) Root. C) Stem. D) Flower. Show Answer Correct Answer: A) Leaf. 8. The female sex hormone that gives female characteristics A) Estrogen. B) Progesterone. C) Testosterone. D) None of the above. Show Answer Correct Answer: A) Estrogen. 9. A hydra reproduces when an outgrowth, or bud, forms and continues to develop until it falls off of the parent. This is an example of: A) Sporulation. B) Vegetative Propagation. C) Binary Fission. D) Budding. Show Answer Correct Answer: D) Budding. 10. A tuber bud is known as a ..... A) Node. B) Flower. C) Eye. D) Root. Show Answer Correct Answer: C) Eye. 11. Females are born with all the egg cells they will ever have. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. Example of sexual flower. A) Hibiscus. B) Papaya. C) Mustard. D) Both a & c. Show Answer Correct Answer: D) Both a & c. 13. This occurs in Bacteria cells which are Prokaryotes (don't have a nucleus) A) FISSION. B) VEGETATIVE PROPAGATION. C) Budding. D) Mitosis. Show Answer Correct Answer: A) FISSION. 14. The condition needed by most seeds to break dormancy is A) Exposure to cold. B) Exposure to heat. C) Exposure to moisture. D) Sowing in soil. Show Answer Correct Answer: C) Exposure to moisture. 15. Budding is common mode of reproduction seen in A) Yeast and hydra. B) Yeast and plasmodium. C) Planaria and hydra. D) Plasmodium and Planaria. Show Answer Correct Answer: A) Yeast and hydra. 16. What process happens when a sperm joins with an egg? A) Germination. B) Pollination. C) Maturity. D) Fertilization. Show Answer Correct Answer: D) Fertilization. 17. How much DNA does the sperm cell contribute to a new seedling. A) All of the DNA. B) Most of the DNA. C) Half of the DNA. D) Almost none of the DNA. Show Answer Correct Answer: C) Half of the DNA. 18. Which of the following organism reproduces via fragmentation? A) Planaria. B) Hydra. C) Plasmodium. D) Spirogyra. Show Answer Correct Answer: D) Spirogyra. 19. 10-The anther contains A) Sepal. B) Carpel. C) Eggs. D) Pollen. Show Answer Correct Answer: D) Pollen. 20. Assertion-Errors in copying always create new body designs.Reason-DNA is the blueprint for body designs and characters. A) Both A and R are true and R is the correct explanation of A. B) Both A and R are are true and R is not the correct explanation of A. C) A is true but R is false. D) A is false bu R is true. Show Answer Correct Answer: D) A is false bu R is true. 21. Male sex hormone A) Azoospermia. B) Testosterone. C) Oggasperia. D) Vasovasostomy. Show Answer Correct Answer: B) Testosterone. 22. What is essential for reproduction? A) Vegetative part. B) Fertilization. C) Gametes. D) Copying of DNA. Show Answer Correct Answer: D) Copying of DNA. 23. True or False:Organisms that reproduce asexually can evolve. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. A feature of reproduction common to amoeba, spirogyra and yeast is A) They reproduce asexually. B) They are unicellular. C) They reproduce sexually. D) They are multicellular. Show Answer Correct Answer: A) They reproduce asexually. 25. The scrotum is an important adaptation in humanmales because the optimum temperature for spermdevelopment is A) 10 to 12 degrees below normal bodytemperature. B) 2 to 4 degrees below normal body temperature. C) 2 to 4 degrees above normal body temperature. D) 10 to 12 degrees above normal bodytemperature. Show Answer Correct Answer: B) 2 to 4 degrees below normal body temperature. 26. Offsprings produced by asexual reproduction have greater similarity among themselves becausei. Asexual reproduction involves only one parentii. Asexual reproduction does not involve gametesiii. Asexual reproduction occurs before sexual reproductioniv. Asexual reproduction occurs after sexual reproduction A) I and ii. B) I and iii. C) Ii and iv. D) Iii and iv. Show Answer Correct Answer: A) I and ii. 27. An alga which reproduces by the asexual reproduction method called fragmentation is- A) Salmonella. B) Spirogyra. C) Rhizopus. D) Plasmodium. Show Answer Correct Answer: B) Spirogyra. 28. How many weeks, on average, does it take for a baby to develop? A) 40 weeks. B) 10 weeks. C) 30 weeks. D) 20 weeks. Show Answer Correct Answer: A) 40 weeks. 29. Copper t as a contraceptive device is placed in the female A) Ovary. B) Uterus. C) Fallopian tube. D) None of the above. Show Answer Correct Answer: B) Uterus. 30. Part of the plant taken for plant tissue culture is known as A) Explant. B) Callus. C) Graft. D) Node. Show Answer Correct Answer: A) Explant. 31. When is ovulation most likely to occur? A) About halfway between the start of one menstruation and the next. B) At the start of menstruation. C) 1-5 days before the start of menstruation. D) 5-10 days after the start of menstruation. Show Answer Correct Answer: A) About halfway between the start of one menstruation and the next. 32. Which of the following statements is not correct about reproduction A) Reproduction is not necessary to maintain the life of an individual. B) A lot of energy is spent in reproduction. C) Reproduction creates more individuals. D) Plants reproduce only by sexual mode of reproduction. Show Answer Correct Answer: D) Plants reproduce only by sexual mode of reproduction. 33. Which reproductive structure is correctly paired withits function? A) Testis-usual location for egg development. B) Ovary-delivers nutrients to the embryo. C) Sperm-transports genetic material. D) Uterus-usual site of fertilization. Show Answer Correct Answer: C) Sperm-transports genetic material. 34. Which of the following statements are true for unisexual flowers?(i) They posses both stamen and pistil(ii) They posses either stamen or pistil(iii) They exhibit cross pollination(iv) Unisexual flowers possessing only states cannot produce fruits. A) I and iv. B) II different. C) Iii and iv. D) I, iii and iv. Show Answer Correct Answer: B) II different. 35. Fertilization in plants occurs in the- A) Pollen tube. B) Style. C) Stigma. D) Embryo sac. Show Answer Correct Answer: D) Embryo sac. ← PreviousRelated QuizzesScience QuizzesClass 10 QuizzesClass 10 Science Chapter 8 How Do Organisms Reproduce Quiz 1Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 2Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 3Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 4Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 5Class 10 Science Chapter 8 How Do Organisms Reproduce Quiz 6 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books