This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 9 Heredity And Evolution – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 9 Heredity And Evolution Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This trait is hidden whenever the dominant allele is present A) Dominant allele. B) Codominance. C) Recessive allele. D) Punnett Square. Show Answer Correct Answer: C) Recessive allele. 2. The trait transfer from one generation to another generation A) Acquired traits. B) Inherited traits. C) Analogous. D) Homologous. Show Answer Correct Answer: B) Inherited traits. 3. The heridity units, which are stretches of DNA called: A) Traits. B) Gametes. C) Characters. D) Genes. Show Answer Correct Answer: D) Genes. 4. Which statement about the human sex chromosomes is correct? A) All boys have two Y chromosomes. B) Everybody has at least one X chromosome. C) Girls have a Y chromosome and an X chromosome. D) Nobody has two X chromosomes. Show Answer Correct Answer: B) Everybody has at least one X chromosome. 5. The crossing of two pea plant which differ in two character is known as A) Monohybrid cross. B) Dihybrid cross. C) Black Cross. D) Hybrid cross. Show Answer Correct Answer: B) Dihybrid cross. 6. Which of these parents will produce an offspring that does NOT look like its parents when it is you? A) Seagull. B) Frog. C) Lion. D) Rattlesnake. Show Answer Correct Answer: B) Frog. 7. Carbon consumption of animals and plants stops after death and since then, only the decaying process of what occurs continuously? A) C-14. B) C-12. C) C-13. D) C-15. Show Answer Correct Answer: A) C-14. 8. In pea, the pure tall plant (TT) is crossed with a pure short plant (tt). the ratio of pure tall plant to pure short plant in F2 generation will be A) 1:3. B) 1:1. C) 3:1. D) 2:1. Show Answer Correct Answer: B) 1:1. 9. Which of the following group has maximum number of common characters? A) Two genera of a class. B) Two genera of a family. C) Two members of a species. D) Two species of genera. Show Answer Correct Answer: C) Two members of a species. 10. What is the genotypic ratio in dihybrid cross? A) 3:1. B) 1:3. C) 9:3:3:1. D) None of these. Show Answer Correct Answer: D) None of these. 11. An organism that has two different alleles for a trait (hybrid) A) Fertilization. B) Genotype. C) Homozygous. D) Heterozygous. Show Answer Correct Answer: D) Heterozygous. 12. Mendel used a number of contrasting visible characteristics of ..... A) Sweet Corn. B) Tomato. C) Brussel Sprouts. D) Garden Peas. Show Answer Correct Answer: D) Garden Peas. 13. Kyree is heterozygous. If (W) is for waves, and (w) if for no waves.What is Kyree's genotype & phenotype? A) WW:waves. B) Ww:waves. C) Ww:no waves. D) Ww:Waves. Show Answer Correct Answer: D) Ww:Waves. 14. In Mendel's monohybrid cross, the F$_{2}$ phenotypic ratio is A) 3:1. B) 1:2:1. C) 2:1. D) 1:3:1. Show Answer Correct Answer: A) 3:1. 15. How does a breeder of Cocker Spaniels make sure every puppy the raise look like a Cocker Spaniel? A) The cross a female Cocker Spaniel with a Golden Retriever. B) The cut their tails and ears as soon as they are born. C) The train the puppies to act like Cocker Spaniels do. D) They make sure both the mother and the father are Cocker Spaniels. Show Answer Correct Answer: D) They make sure both the mother and the father are Cocker Spaniels. 16. Reena is suffering from a genetic disorder known as sickle cell anemia which of the following processes is the cause of her condition A) Transcription. B) Translation. C) Translocation. D) Mutation. Show Answer Correct Answer: D) Mutation. 17. A trait in an organism is influenced by A) Paternal DNA only. B) Maternal DNA only. C) Both maternal and Paternal DNA. D) Neither by Paternal nor by maternal DNA. Show Answer Correct Answer: C) Both maternal and Paternal DNA. 18. It is the notion that an organism can pass on to its offspring physical characteristics that the parent organism acquired through use or disuse during its lifetime. A) Theory of evolution. B) Theory of acquired characteristics. C) Theory of need. D) Theory of use and disuse. Show Answer Correct Answer: B) Theory of acquired characteristics. 19. Which of the following are necessary for evolution by natural selection to take place? A) Population tend to grow faster than their food supplies. B) Differences among individuals exist and lead to different numbers of successful offspring being produced. C) Every individual should reproduce. D) All of these. Show Answer Correct Answer: B) Differences among individuals exist and lead to different numbers of successful offspring being produced. 20. What does mRNA do? A) Carry info from genes to ribosomes. B) Carry amino acids to ribosomes. C) Help with RNA splicing. D) Make up ribosomes. Show Answer Correct Answer: A) Carry info from genes to ribosomes. 21. If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant (rr YY), the seeds produced in F1 generation are A) Round and yellow. B) Round and green. C) Wrinkled and yellow. D) Wrinkled and green. Show Answer Correct Answer: A) Round and yellow. 22. A zygote that has an X-chromosome inherited from the father will develop into a A) Boy. B) Girl. C) X-Chromosome do not determine the gender of the child. D) Neither boy nor girl. Show Answer Correct Answer: B) Girl. 23. ..... proposed a model for protein synthesis with the help of DNA in bacterial cells. A) Gregor Johann Mendel. B) Walter & Sutton. C) Francois Jacob & Jack Monad. D) Hugo de Vries. Show Answer Correct Answer: C) Francois Jacob & Jack Monad. 24. Modern man differs from australopithecus in which of the following aspects A) Presence of tail. B) Use of hands for eating food. C) Increased brain size. D) All of the above. Show Answer Correct Answer: C) Increased brain size. 25. The condition where two alleles of a specific trait are different. A) Heterozygous. B) Homozygous. C) Genotype. D) Phenotype. Show Answer Correct Answer: A) Heterozygous. ← PreviousNext →Related QuizzesClass 10 Science Chapter 9 Heredity And Evolution Quiz 1Class 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 10Class 10 Science Chapter 9 Heredity And Evolution Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books