This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 9 Heredity And Evolution – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 9 Heredity And Evolution Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A rose plant has two genes for the expression of flower colour, R and r. So for flower colour, the rose plant is: A) Homozygous. B) Heterozygous. C) Homologous. D) Heterologous. Show Answer Correct Answer: B) Heterozygous. 2. A characteristic that an organism can pass on to its offspring through its genes A) Protein. B) Trait. C) DNA. D) Gene. Show Answer Correct Answer: B) Trait. 3. The scientist who gave theory of evolution A) Charles Darwin. B) Lamarck. C) Mendel. D) Watson. Show Answer Correct Answer: A) Charles Darwin. 4. A group of organisms in which all organisms can reproduce to give birth to a fertile offspring is called ..... A) Hybridization. B) Species. C) Speciation. D) None of these. Show Answer Correct Answer: B) Species. 5. The ratio of pure tall and pure short plant in F2 generation is A) 1:3. B) 3:1. C) 1:1. D) 1:2:1. Show Answer Correct Answer: C) 1:1. 6. Analogous organs have A) Same structure, different function. B) Different structure, same function. C) Same origin and different function. D) Different function. Show Answer Correct Answer: B) Different structure, same function. 7. Which structure will be found in the nucleus of a body cell in a woman? A) X allele. B) X chromosome. C) And Allele. D) Y chromosome. Show Answer Correct Answer: B) X chromosome. 8. The science of heredity is not used for ..... A) Diagnosis and prevention of disorders. B) Production of hybrid varieties of crops. C) Recombinant DNA technology. D) Industrial processes involving microbes. Show Answer Correct Answer: C) Recombinant DNA technology. 9. Characters that are passed on from parents to offspring are also known as A) Inherited characters. B) Acquired characters. C) Evolving characters. D) None of the above. Show Answer Correct Answer: A) Inherited characters. 10. Organs which are of similar origin and shape but perform different functions are examples of A) Vestigial organs. B) Analogous organs. C) Homologous organs. D) None of the above. Show Answer Correct Answer: C) Homologous organs. 11. This trait always shows up in an organism when the allele is present A) Dominant allele. B) Codominance. C) Probability. D) Recessive allele. Show Answer Correct Answer: A) Dominant allele. 12. When the two alleles of a particular gene are different: A) Heterozygous. B) Homozygous. C) Genotype. D) Phenotype. Show Answer Correct Answer: A) Heterozygous. 13. Branch dealing with the study of fossils is A) Palaeontology. B) Genetics. C) Physiology. D) Fossilogy. Show Answer Correct Answer: A) Palaeontology. 14. What is the correct defintion of a species? A) Same type of organisms living in an area. B) Same type of organisms that can reproduce. C) Organisms that can reproduce and fertilize offspring. D) Organisms that can reproduce and have fertile offspring. Show Answer Correct Answer: D) Organisms that can reproduce and have fertile offspring. 15. Who introduced the theory of Survival of fittest? A) Lamarack. B) Hugo de Vries. C) Darwin. D) None of the above. Show Answer Correct Answer: C) Darwin. 16. ..... is not a vestigial organ in man A) Appendix. B) Wisdom tooth. C) Body hair. D) Duodenum. Show Answer Correct Answer: D) Duodenum. 17. Corals are dying due to global warming. Evolution will eventually help the corals to survive in warmer waters. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 18. What is natural selection? A) Natural selection is the process by which organisms that are better adapted to their environment tend to survive and reproduce more successfully. B) Natural selection is the process of organisms changing their environment to survive. C) Natural selection is the method by which all organisms are created equally. D) Natural selection is the random process of extinction of species. Show Answer Correct Answer: A) Natural selection is the process by which organisms that are better adapted to their environment tend to survive and reproduce more successfully. 19. Farmers have produced (or evolved) entirely different looking vegetables from wild cabbage. Below are given some evolved types along with their characteristics. Select the incorrect match among them. A) Flower clusters-Cauliflower. B) Fleshy stem-Kohlrabi. C) Fleshy lateral buds-Brussel's sprouts. D) Fleshy terminal buds-Kohlrabi. Show Answer Correct Answer: D) Fleshy terminal buds-Kohlrabi. 20. A dihybrid of garden pea plant having genotype 'RrYy' is crossed with homozygous recessive garden pea plant having genotype 'rryy'. What is the phenotypic ratio? A) 1:2:1. B) 1:1:1:1. C) 3:1. D) 9:3:3:1. Show Answer Correct Answer: B) 1:1:1:1. 21. Which part of the DNA provides information for a protein? A) Chromosome. B) Mitochondria. C) RNA. D) Gene. Show Answer Correct Answer: D) Gene. 22. Process of RNA synthesis is called as ..... A) Transcription. B) Protein Synthesis. C) Central dogma. D) DNA production. Show Answer Correct Answer: A) Transcription. 23. Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be: A) Double fertilisation. B) . self-pollination. C) Cross-fertilisation. D) No fertilisation. Show Answer Correct Answer: B) . self-pollination. 24. Who is considered as the father of Evolution A) Mendel. B) Charles Darwin. C) Lamarck. D) Robert Brown. Show Answer Correct Answer: B) Charles Darwin. 25. Theory of inheritance of acquired characters is also known as A) Lamarckism. B) Natural selection. C) Speciation. D) Translocation. Show Answer Correct Answer: A) Lamarckism. 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