This quiz works best with JavaScript enabled. Home > Class 10 > Class 10 Science Chapter 9 Heredity And Evolution – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 9 Heredity And Evolution Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An organism's genetic makeup, or allele combination A) Fertilization. B) Genotype. C) Phenotype. D) Heterozygous. Show Answer Correct Answer: B) Genotype. 2. What is a species? A) A group of organisms that can mate with each other and produce fertile offspring. B) A group of organisms that can mate and produce offspring even if those offspring are infertile. C) A group of organisms that genetically are very different from each other. D) Indivual organisms that live in the same environment. Show Answer Correct Answer: A) A group of organisms that can mate with each other and produce fertile offspring. 3. Mendel studied Maths and Science in the ..... A) University of Venice. B) University of Kent. C) University of Vienna. D) University of Colorado. Show Answer Correct Answer: C) University of Vienna. 4. The process where characteristics are transmitted from parent to offsprings is called: A) Variation. B) Heredity. C) Gene. D) Allele. Show Answer Correct Answer: B) Heredity. 5. Which of the following is not a direct conclusion that can be drawn from Mendels Experiment? A) Two copies of each trait are inherited in a sexually reproducing organism. B) For a recessive trait to be expressed, both copies should be identical. C) Natural selection can alter the frequency of an inherited trait. D) Only one parental trait is expressed. Show Answer Correct Answer: C) Natural selection can alter the frequency of an inherited trait. 6. What evidence supports the theory of evolution? A) Fossil records, genetic similarities, natural selection, and geographical distribution. B) Meteorological data. C) Historical documents. D) Religious texts. Show Answer Correct Answer: A) Fossil records, genetic similarities, natural selection, and geographical distribution. 7. A zygote which has an X-chromosome inherited from the father will develop into a A) Girl. B) X-chromosome does not determine the sex of a child. C) Either boy or girl. D) Boy. Show Answer Correct Answer: A) Girl. 8. The offspring of a cross between parents that have contrasting traits: A) Purebred. B) Hybrid. C) Dominant. D) Recessive. Show Answer Correct Answer: B) Hybrid. 9. One cat has a heterozygous genotype, black fur (Bb), and its mate has a homozygous genotype grey fur (bb). Use a Punnett square to determine the probability of one of their offspring having grey fur. A) 100%. B) 25%. C) 50%. D) 75%. Show Answer Correct Answer: C) 50%. 10. What specialized structure do crabs have to protect them against predators? A) Warm, thick fur. B) Fast running bodies. C) Good digestive systems. D) A hard outer shell. Show Answer Correct Answer: D) A hard outer shell. 11. Neck of Giraffe is an example of which concept? A) Lamarckism. B) Connecting link. C) Vestigial organ. D) Anatomical evidences. Show Answer Correct Answer: A) Lamarckism. 12. Hemophilia is a sex-linked recessive disorder. The abnormal gene responsible for hemophilia is carried on the X chromosome. Identify a female that has hemophilia. A) X$^{h}$X$^{h}$. B) X$^{H}$X$^{h}$. C) X$^{h}$Y. D) X$^{H}$Y. Show Answer Correct Answer: A) X$^{h}$X$^{h}$. 13. What is a dominant trait? A) A character that expresses itself in the offspring. B) A character that does not express itself but is present 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 expresses itself in the offspring. 14. Mendel conducted his famous breeding experiments by working on:- A) Drosophilla. B) They exhibited. C) Pisum sativum. D) All of these. Show Answer Correct Answer: C) Pisum sativum. 15. Who proposed the (natural selection )theory of evolution A) Charles Darwin. B) Stanley Miller. C) Harold Urey. D) Aristotle. Show Answer Correct Answer: A) Charles Darwin. 16. In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2 is: A) 1:3. B) 3:1. C) 1:1. D) . 2:1. Show Answer Correct Answer: A) 1:3. 17. Which of the following is NOT an example of natural selection? A) People selectively breeding hamsters. B) Insect populations developing resistance to certain pesticides. C) Bacteria becoming resistant to antibiotics. D) Male birds of certain species developing colorful feathers to attract female mates. Show Answer Correct Answer: A) People selectively breeding hamsters. 18. During reproduction the development of zygote into male or female is called ..... A) Sex determination. B) Male determination. C) Female determination. D) None of these. Show Answer Correct Answer: A) Sex determination. 19. Which of the following is not a direct conclusion that can be drawn from Mendel s Experiment? A) Only one parental trait is expressed. B) Two copies of each trait is inherited in sexually reproducing organism. C) For recessive trait to be expressed, both copies should be identical. D) Natural selection can alter frequency of an inherited trait. Show Answer Correct Answer: D) Natural selection can alter frequency of an inherited trait. 20. What is the unit of heredity? A) DNA. B) Protein. C) Gene. D) Character. Show Answer Correct Answer: C) Gene. 21. New species may be formed if A) DNA undergoes significant changes in germ cell & chromosomes number changes in gamete. B) Mating does not take place. C) There is no change in the genetic material. D) Chromosomes number changes in sperm. Show Answer Correct Answer: A) DNA undergoes significant changes in germ cell & chromosomes number changes in gamete. 22. The cross between two garden pea plants with a pair of contrasting characters is called ..... A) Monohybrid cross. B) One hybrid cross. C) Both option 1 and option 2. D) None of the above. Show Answer Correct Answer: A) Monohybrid cross. 23. Plant breeding and animal breeding are the examples of: A) Natural selection. B) Artificial selection. C) Genetic selection. D) Species selection. Show Answer Correct Answer: B) Artificial selection. 24. What is 'LAW OF DOMINANCE'? A) It states when two alleles are there, and one allele gets suppressed are called as the recessive traits and the one who are inherited by the offspring is the dominant. B) "During the formation of gamete, each gene separates from each other, and gamete carries only one allele for each gene. C) This states that the allele of one gene separates independently of an allele of another gene. D) None of the above. Show Answer Correct Answer: A) It states when two alleles are there, and one allele gets suppressed are called as the recessive traits and the one who are inherited by the offspring is the dominant. 25. Wisdom teeth and Vermiform appendix in human being are examples of A) Homologous organs. B) Analogous organs. C) Vestigial organs. D) None of the above. Show Answer Correct Answer: C) Vestigial organs. ← 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 9Class 10 Science Chapter 9 Heredity And Evolution Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books