This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 9 Heredity And Evolution – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 9 Heredity And Evolution Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... billion years ago, life had been non existent on the Earth. A) 1.5. B) 3.5. C) 2.5. D) 8.5. Show Answer Correct Answer: B) 3.5. 2. Mammals have evolved from A) Aves. B) Reptiles. C) Amphibians. D) Fishes. Show Answer Correct Answer: B) Reptiles. 3. Mendel selected garden peas as his experimental material because(i) Pea plants possess a number of well defined contrasting characters.(ii) Pea plants contain unisexual flowers.(iii) Pea plants have perfect bisexual flowers.(iv) These are annual plants. A) (i) and (iv) only. B) (i) and (ii) only. C) (i) and (iii) only. D) (i), (iii) and (iv) only. Show Answer Correct Answer: D) (i), (iii) and (iv) only. 4. If a couple has a "one-in-four" risk of having a child with a disease, and their firstborn has the disease, the next child will still have a 25% of getting the disease. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. Which mechanism of evolution occur when gene frequencies change over generations due to the random chance? A) Natural selection. B) Genetic drift. C) Variations. D) Gene flow. Show Answer Correct Answer: B) Genetic drift. 6. When a new plant is formed as a result of cross-pollination from different varieties of a plant, the newly formed plant is called: A) Dominant plant. B) Mutant plant. C) Hybrid plant. D) All of the above. Show Answer Correct Answer: C) Hybrid plant. 7. Which of the following is the ancestor of 'Broccoli'? A) Cabbage. B) Cauliflower. C) Wild cabbage. D) Kale. Show Answer Correct Answer: C) Wild cabbage. 8. Carbon dating method measures the radioactivity of C-14 & the ratio of ..... present in the organisms body A) C-12 to C-14. B) C-6 to C-7. C) C-14 to C-12. D) C-14 to 0-16. Show Answer Correct Answer: C) C-14 to C-12. 9. Vestigial organ ..... present in human body is proof of evolution. A) Alveoli. B) Appendix. C) Liver. D) Heart. Show Answer Correct Answer: B) Appendix. 10. The phenotypic ratio of Monohybrid cross is A) 1:2:1. B) 3:1. C) 1:3. D) 4:2. Show Answer Correct Answer: B) 3:1. 11. In horses, coat color has incomplete dominance. A horse with one allele for black coat and one allele for cream coat will have the color known as buckskin. If two buckskin horses have a baby, what are the potential coat colors it could have. A) It can only be buckskin. B) It will be either buckskin or cream colored. C) It will be either black or cream. D) It could have any of the three possible coat colors. Show Answer Correct Answer: D) It could have any of the three possible coat colors. 12. True or false:RNA is double-stranded. A) True. B) False. C) It depends on the type. D) None of the above. Show Answer Correct Answer: B) False. 13. Evolution of wild cabbage is an example of: A) Artificial selection. B) Natural selection. C) Mutation. D) Genetic drift. Show Answer Correct Answer: A) Artificial selection. 14. What is NOT an inherited trait of humans? A) Favorite type of music. B) Freckles. C) Hair color. D) Height. Show Answer Correct Answer: A) Favorite type of music. 15. The characteristic which is visible in an organism is called A) Genotype. B) Progeny. C) Phenotype. D) Hybrid. Show Answer Correct Answer: C) Phenotype. 16. A version of a gene: A) Allele. B) Trait. C) Character. D) Generation. Show Answer Correct Answer: A) Allele. 17. Evolution is not a fast process A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. Which of the following can influence traits in the child? A) Paternal DNA. B) Maternal DNA. C) Both. D) No inheritance of traits occur. Show Answer Correct Answer: C) Both. 19. Transfer of information from molecule of DNA to mRNA is called ..... process. A) Translocation. B) Transcription. C) Translation. D) Mutation. Show Answer Correct Answer: B) Transcription. 20. Wings of birds and insects are A) Vestigeal organs. B) Homologous organs. C) Analogous organs. D) None of these. Show Answer Correct Answer: C) Analogous organs. 21. True or false:Mutations only harm chances of survival: A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 22. Which of the following is a recessive trait in garden peas? A) Tall plants. B) Round Seeds. C) Violet Flowers. D) Wrinkled Seeds. Show Answer Correct Answer: D) Wrinkled Seeds. 23. ..... is the passing of traits from parents to offspring (babies) A) DNA. B) Heredity. C) Evolution. D) None of the above. Show Answer Correct Answer: B) Heredity. 24. If a normal cell of human body contains 46 pairs of chromosomes then the numbers of chromosomes in a sex cell of a human being is most likely to be: A) 60. B) 23. C) 22. D) 40. Show Answer Correct Answer: C) 22. 25. Which of the following types of RNA carries information from the gene to the ribosome? A) MRNA. B) TRNA. C) RRNA. D) All of the above. Show Answer Correct Answer: A) MRNA. ← 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 7Class 10 Science Chapter 9 Heredity And Evolution Quiz 8Class 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