This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 9 Heredity And Evolution – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 9 Heredity And Evolution Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Odd One Out.Mrna, RRNA, QRNA, TRNA, A) MRNA. B) Ray. C) RRNA. D) TRNA. Show Answer Correct Answer: B) Ray. 2. RNA has what base that is instead of thymine? A) Guanine. B) Adenine. C) Thymine. D) Uracil. Show Answer Correct Answer: D) Uracil. 3. After cross-fertilization of true-breeding tall(TT) and dwarf plants(tt), the F1-generation was self-pollinated.What would be the resultant ratio of the plant genotype? A) 3:1 (tall:dwarf). B) 1:2:1 (homozygous tall:heterozygous tall:dwarf). C) 3:1 (dwarf:tall). D) 1:2:1 (heterozygous tall:homozygous tall:dwarf). Show Answer Correct Answer: B) 1:2:1 (homozygous tall:heterozygous tall:dwarf). 4. These are natural differences within a species. A) Evolution. B) Genetic variation. C) Biological diversity. D) Populations. Show Answer Correct Answer: B) Genetic variation. 5. What is a recessive trait? A) A character that does not express itself but is present in the offspring. B) A character that expresses itself in the offspring. C) A condition in which both genes of the same type are present. D) A condition in which both genes are of different types. Show Answer Correct Answer: A) A character that does not express itself but is present in the offspring. 6. Which of the following is not controlled by genes? A) Weight of a person. B) Height of a person. C) Only \{a\}. D) Both Aand B. Show Answer Correct Answer: B) Height of a person. 7. The protein is synthesized by RNA through DNA. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. Darwin's theory does not include: A) Natural Selection. B) Survival of the fittest. C) Evolution Through Inheritance. D) Struggle for existence of life. Show Answer Correct Answer: C) Evolution Through Inheritance. 9. A white flowered plant is crossed with a red flowered plant. The two traits have codominance. What color are the offspring? A) Red. B) White. C) Red and white spotted. D) Pink. Show Answer Correct Answer: C) Red and white spotted. 10. Which of the following can be inherited from parents to offspring A) Swimming technique. B) Big nose. C) Sculpted body. D) All of the above. E) None of the above. Show Answer Correct Answer: B) Big nose. 11. Medel selected which plant for his experiment A) Rose. B) Jasmine. C) Pea. D) Sunflower. Show Answer Correct Answer: C) Pea. 12. Survival of the Fittest and Evolution were proposed by what scientist? A) Charles Darwin. B) Albert Einstein. C) Steven Hawking. D) Isaac Newton. Show Answer Correct Answer: A) Charles Darwin. 13. Say true or false.Appendix is a fully functional organ in ruminants. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 14. All mutations are harmful. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 15. Select the set of homologous organs from the following A) Flippers of penguin and dolphin. B) Fore limbs of horse, paw of cat. C) Wings of housefly, wings of cockroach. D) Wings of bat, wings of pigeon. Show Answer Correct Answer: B) Fore limbs of horse, paw of cat. 16. Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution this means that A) Reptiles have evolved from birds. B) There is no evolutionary connection between reptiles and birds. C) Feathers are homologous structures in both the organisms. D) Birds have evolved from reptiles. Show Answer Correct Answer: D) Birds have evolved from reptiles. 17. Two pea plants are crossed that are heterozygous for both height and flower color. Tall is dominant to short and purple is dominant to white. What is the phenotypic ratio of the children. A) 9:3:3:1. B) 10:2:2:2. C) 5:4:4:3. D) 6:6:2:2. Show Answer Correct Answer: A) 9:3:3:1. 18. Do both the parents contribute DNA equally during sexual reproduction? A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 19. It is based on the principle that physical changes in organisms during their lifetime. A) Theory of use and disuse. B) Theory of need. C) Theory of Evolution. D) Theory of acquired characteristics. Show Answer Correct Answer: C) Theory of Evolution. 20. Identify the correct sequence A) Egyptopithex-Dyopithex-Ramapithex-Australopithex. B) Australopithex-Dedyopithex-Ramapithex-Egyptopothex. C) Egyptopithex-ramapithex-deyopithex-ostropithex. D) Australopithex-Ramapithex-Dyopithex-Ageptopithex. Show Answer Correct Answer: A) Egyptopithex-Dyopithex-Ramapithex-Australopithex. 21. Which of the following is NOT true in the formation of a new species? A) A mutation causes a population to breed with a different species. B) Reproductive isolation can occur by the formation of a mountain range. C) A population needs to become reproductively isolated. D) An isolated population has adapted to new ecological niches eventually result in the inability to reproduce with the original population. Show Answer Correct Answer: A) A mutation causes a population to breed with a different species. 22. The surprise products formed in experiment conducted by Miller and Urey were:- A) Peptides. B) Amino acids. C) Nucleotides. D) Nucleic acids. Show Answer Correct Answer: B) Amino acids. 23. Phenotype determines genotype A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. Which one of the following adaptation will be selected by natural selection in rabbits living in polar region? A) Black colored thick fur. B) White coloured thick fur. C) White coloured thin fur. D) Black colored thin fur. Show Answer Correct Answer: B) White coloured thick fur. 25. The process by which new species develop from the existing species is known as A) Evolution. B) Natural selection. C) Artificial selection. D) Speciation. Show Answer Correct Answer: D) Speciation. ← PreviousNext →Related QuizzesClass 10 Science Chapter 9 Heredity And Evolution Quiz 1Class 10 Science Chapter 9 Heredity And Evolution Quiz 2Class 10 Science Chapter 9 Heredity And Evolution Quiz 3Class 10 Science Chapter 9 Heredity And Evolution Quiz 4Class 10 Science Chapter 9 Heredity And Evolution Quiz 5Class 10 Science Chapter 9 Heredity And Evolution Quiz 6Class 10 Science Chapter 9 Heredity And Evolution Quiz 8Class 10 Science Chapter 9 Heredity And Evolution Quiz 9Class 10 Science Chapter 9 Heredity And Evolution Quiz 10Class 10 Science Chapter 9 Heredity And Evolution Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books