This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 9 Heredity And Evolution – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 9 Heredity And Evolution Quiz 19 (16 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When a layer of rock cuts through the other layers A) The layer that cut through is younger than the layers it cuts through. B) The layer at the bottom is younger. C) The layers are the same age. D) The index fossil is destroyed. Show Answer Correct Answer: A) The layer that cut through is younger than the layers it cuts through. 2. . Write true or false for the following statements:There is an inbuilt tendency to variation during reproduction, both because of errors in DNA copying and as a result of sexual reproduction. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. Changes that give the organism the survival advantage in the environment are called ..... A) Adaptations. B) Evolution. C) Variations. D) Natural selection. Show Answer Correct Answer: A) Adaptations. 4. Odd one outCoccyx, intestine, wisdom teeth, appendix. A) Coccyx. B) Wisdom teeth. C) Intestine. D) Appendix. Show Answer Correct Answer: C) Intestine. 5. If a man is color blind, can he pass the trait on to his sons? A) Yes. B) No. C) Only if his mother was color blind. D) Only if his father was color blind. Show Answer Correct Answer: B) No. 6. Which of the following is totally impossible outcome of Mendel s Experiment? A) 3 tall 1 short plant. B) 24 tall and 8 short plants. C) 8 tall and 0 short plants. D) 4 tall plants and 1 medium height plant. Show Answer Correct Answer: D) 4 tall plants and 1 medium height plant. 7. An organism's physical appearance or visible traits A) Fertilization. B) Genotype. C) Phenotype. D) Homozygous. Show Answer Correct Answer: C) Phenotype. 8. Nature has a way of causing organisms that inherit advantageous traits to survive and reproduce more successfully than the ones that don't. This process is known as ..... A) Natural selection. B) Genetic variation. C) Adaptation. D) Overproduction. Show Answer Correct Answer: A) Natural selection. 9. The fossils of invertebrates indicate they belong to which era A) Mesozoic era. B) Paleozoic era. C) Cenozoic Era. D) Use. Show Answer Correct Answer: B) Paleozoic era. 10. The appendix is useful in ruminants for digestion of which of the following compounds? A) Fats. B) Cellulose. C) Proteins. D) Glycogen. Show Answer Correct Answer: B) Cellulose. 11. In human beings, the 23rd pair of chromosome that defines the sex of the individual is known as A) Autosome. B) Sex Chromosome. C) Chromosome. D) None of the above. Show Answer Correct Answer: B) Sex Chromosome. 12. ..... is the pioneer of modern genetics A) Gregor johannMendel. B) Hugo de Vries. C) Oswald avery. D) Colin McLeod. Show Answer Correct Answer: A) Gregor johannMendel. 13. What do tRNA bring to the ribosome? A) Glucose. B) Fatty acids. C) Nucleotides. D) Amino acids. Show Answer Correct Answer: D) Amino acids. 14. Identify the correct trio of scientists who proved that except viruses, all living organisms have Dna as genetic material A) Avery, McCharthy& Macleod. B) Avery, Jacob& Monad. C) Mendel, Darwin lamarck. D) Walter, Sutton & Hugo de Vries. Show Answer Correct Answer: A) Avery, McCharthy& Macleod. 15. In human being the XY chromosome is the genotype of a A) Female. B) Male. C) No idea. D) None of the above. Show Answer Correct Answer: B) Male. 16. The second generation has variations from A) First generation. B) Newly created differences. C) Both. D) No variation. Show Answer Correct Answer: C) Both. ← PreviousRelated 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 9Class 10 Science Chapter 9 Heredity And Evolution Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books