This quiz works best with JavaScript enabled. Home > Cbse > Class 10 > Science > Heredity And Evolution > Class 10 Science Chapter 9 Heredity And Evolution – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 10 Science Chapter 9 Heredity And Evolution Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which section of DNA provides information for one protein A) Nucleus. B) Gene. C) Chromosomes. D) Features. Show Answer Correct Answer: B) Gene. 2. What is a recessive allele? A) A trait that is always shown (capital letter). B) A trait that can be hidden (lower case letter). C) Alleles that are the same. D) Alleles that are different. Show Answer Correct Answer: B) A trait that can be hidden (lower case letter). 3. The disappearance of a species. A) Evolution. B) Migration. C) Extinction. D) Mutation. Show Answer Correct Answer: C) Extinction. 4. An organism's genetic makeup, or allele combination A) Genotype. B) Heterozygous. C) Fertilization. D) Phenotype. Show Answer Correct Answer: A) Genotype. 5. 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. 6. Mendel studied Maths and Science in the ..... A) University of Venice. B) University of Vienna. C) University of Kent. D) University of Colorado. Show Answer Correct Answer: B) University of Vienna. 7. 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. 8. 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. 9. 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. 10. The offspring of a cross between parents that have contrasting traits: A) Dominant. B) Hybrid. C) Recessive. D) Purebred. Show Answer Correct Answer: B) Hybrid. 11. 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) 50%. B) 100%. C) 75%. D) 25%. Show Answer Correct Answer: A) 50%. 12. 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. 13. Neck of Giraffe is an example of which concept? A) Connecting link. B) Anatomical evidences. C) Vestigial organ. D) Lamarckism. Show Answer Correct Answer: D) Lamarckism. 14. 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$^{h}$Y. C) X$^{H}$Y. D) X$^{H}$X$^{h}$. Show Answer Correct Answer: A) X$^{h}$X$^{h}$. 15. 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. 16. 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. 17. Select the correct statement A) Tendril of a pea plant and phylloclade of Opuntia are homologous. B) Tendril of a pea plant and phylloclade of Opuntia are analogous. C) Wings of birds and limbs of lizards are analogous. D) Wings of birds and wings of bat are homologous. Show Answer Correct Answer: A) Tendril of a pea plant and phylloclade of Opuntia are homologous. 18. Who proposed the (natural selection )theory of evolution A) Aristotle. B) Stanley Miller. C) Charles Darwin. D) Harold Urey. Show Answer Correct Answer: C) Charles Darwin. 19. Which of the following is NOT an example of natural selection? A) Bacteria becoming resistant to antibiotics. B) Male birds of certain species developing colorful feathers to attract female mates. C) People selectively breeding hamsters. D) Insect populations developing resistance to certain pesticides. Show Answer Correct Answer: C) People selectively breeding hamsters. 20. 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. 21. What is the unit of heredity? A) Protein. B) Character. C) Gene. D) DNA. Show Answer Correct Answer: C) Gene. 22. New species may be formed if A) DNA undergoes significant changes in germ cell & chromosomes number changes in gamete. B) Chromosomes number changes in sperm. C) Mating does not take place. D) There is no change in the genetic material. Show Answer Correct Answer: A) DNA undergoes significant changes in germ cell & chromosomes number changes in gamete. 23. 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. 24. Plant breeding and animal breeding are the examples of: A) Genetic selection. B) Artificial selection. C) Natural selection. D) Species selection. Show Answer Correct Answer: B) Artificial selection. 25. 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. 26. 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. 27. Which macromolecule is made up of amino acids? A) Carbohydrate. B) Nucleic acid. C) Protein. D) Lipid. Show Answer Correct Answer: C) Protein. 28. If a child has red hair, they inherited a certain ..... from their parents. A) Trait. B) Probability. C) Ratio. D) Sex chromosome. Show Answer Correct Answer: A) Trait. 29. What do we call a group of individuals that can reproduce successfully in nature? A) Species. B) Adaptation. C) Speciation. D) None of the above. Show Answer Correct Answer: A) Species. 30. Which RNA carries the message? A) MRNA. B) RRNA. C) TRNA. D) None of the above. Show Answer Correct Answer: A) MRNA. 31. The theory of evolution of species by natural selection was given by A) Dalton. B) Lamarck. C) Mendel. D) Darwin. Show Answer Correct Answer: D) Darwin. 32. What type of RNA moves to the ribosome to start protein synthesis? A) NRNA. B) MRNA. C) RRNA. D) TRNA. Show Answer Correct Answer: B) MRNA. 33. A trait in an organism is determined by A) Both maternal and paternal DNA. B) Paternal DNA only. C) Maternal DNA only. D) Neither by paternal nor by maternal DNA. Show Answer Correct Answer: A) Both maternal and paternal DNA. 34. In peas, yellow pod color is dominant to green pod color. Two homozygous dominant parents are crossed. What are the chances that the offspring will have green pods? A) 0%. B) 25%. C) 75%. D) 50%. Show Answer Correct Answer: A) 0%. 35. Dominant or recessive?Dd A) Homozygous. B) Recessive. C) Dominant. D) Neither. Show Answer Correct Answer: C) Dominant. 36. When two pairs of contrasting characters are taken in a dihybrid cross, the inheritance of one pair is independent of the other. This law is: A) Law of dominance. B) Law of segregation. C) Law of independent assortment. D) Both option 1 and option 2. Show Answer Correct Answer: C) Law of independent assortment. 37. A chart that shows all the possible combinations of alleles that can result from a genetic cross A) Dominant allele. B) Codominance. C) Probability. D) Punnett Square. Show Answer Correct Answer: D) Punnett Square. 38. Which one of the following characteristics was not included in the experiments done by Mendel? A) Pod shape. B) Number of cotyledons. C) Pod colour. D) Seed colour. Show Answer Correct Answer: B) Number of cotyledons. 39. Characters transmitted from parents to offsprings are present in A) Genes. B) Golgibody. C) Ribosomes. D) Cytoplasm. Show Answer Correct Answer: A) Genes. 40. This is a process by which organisms inherited advantageous traits that tend to reproduce more successfully than the other organisms do. A) Environment. B) Natural selection. C) Artificial selection. D) Populations. Show Answer Correct Answer: B) Natural selection. 41. Those organs which have different basic structure but have similar appearance and perform similar functions are called A) Analogous organs. B) Homologous organs. C) Vestigial organs. D) None of these. Show Answer Correct Answer: A) Analogous organs. 42. . In human males, all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are" (i) large chromosome(ii) small chromosome(iii) Y-chromosome(iv) X-chromosome A) . (i) and (ii). B) (iii) only. C) (iii) and (iv). D) (ii) and (iv). Show Answer Correct Answer: C) (iii) and (iv). 43. Genes are present A) In nucleus. B) In cell. C) On chromosomes. D) In mitochondria. Show Answer Correct Answer: C) On chromosomes. 44. In science, mutations are A) The reason the X-Men exist. B) Genetically engineered creatures that you fight in the Hunger Games. C) A change in the DNA of an organism that produces new traits. D) Always helpful for survival. Show Answer Correct Answer: C) A change in the DNA of an organism that produces new traits. 45. Organisms which have similar function but different structure are called A) Homologous Organs. B) Analogous Organs. C) Karyotype organs. D) None of these. Show Answer Correct Answer: B) Analogous Organs. 46. During Mendel experiment traits from which parent were inherited? A) Half the traits of both. B) Only one of the parental traits. C) Traits from both the parents. D) None of the above. Show Answer Correct Answer: C) Traits from both the parents. 47. The ..... man evolved about 50 thousand years ago. A) Cro magnon. B) Neanderthal. C) Java man. D) Ramapithecus. Show Answer Correct Answer: A) Cro magnon. 48. A pure tall pea plant is crossed with a short pea plant the ratio of pure tall pea plant to the short pea plant producing in F2 generation is A) 1:1. B) 3:1. C) 2:1. D) 1:3. Show Answer Correct Answer: A) 1:1. 49. If species A and B have very similar genes and proteins, what is probably TRUE? A) Species A and B share a relatively recent common ancestor. B) Species A evolved independently of species B for a long period. C) Species A is younger than species B. D) Species A is older than species B. Show Answer Correct Answer: A) Species A and B share a relatively recent common ancestor. 50. Wings of bat and that of a bird are examples of A) Vestigial organs. B) Homologous organs. C) Analogous organs. D) None of the above. Show Answer Correct Answer: C) Analogous organs. 51. Which of the following is not controlled by genes? 1. Weight of a person 2. Height of a person A) Only 1. B) Only 2. C) Both 1 and 2. D) Sometimes 1 and sometimes 2. Show Answer Correct Answer: B) Only 2. 52. Divya has brown hair. Which is most likely a true statement about Divya? A) Divya's favorite color is brown. B) Divya has a parent with brown hair. C) Divya's older brother has brown hair. D) None of the above. Show Answer Correct Answer: B) Divya has a parent with brown hair. 53. "Survival of the Fittest" describes which theory A) Gravity. B) Natural selection. C) String theory. D) Heredity. Show Answer Correct Answer: B) Natural selection. 54. The preserved fossil of Archeopteryx show that: A) Birds have evolved from reptiles. B) Reptiles have evolved from birds. C) It was a flying reptile. D) It was a bird. Show Answer Correct Answer: A) Birds have evolved from reptiles. 55. Connecting links suggests that amphibians are evolved from A) Reptiles. B) Fishes. C) Aves. D) Mammals. Show Answer Correct Answer: B) Fishes. 56. When the fossil of the organism is found in the upper surfaces of earth it implies that: A) The extinction of organism has occurred thousands of years ago. B) The extinction of organism has occurred recently. C) The presence of fossils in the layers of earth is not related to earth. D) The time of extinction can not be determined. Show Answer Correct Answer: B) The extinction of organism has occurred recently. 57. Who among the following first coined the term "Genetics" ? A) Wilhelm Johannsen. B) Gregor Mendel. C) William Bateson. D) None of these. Show Answer Correct Answer: C) William Bateson. 58. During Mendel experiment traits from which parent were expressed? A) Half traits of both the parents. B) Only one of the parental traits. C) All traits from both the parents. D) None of the above. Show Answer Correct Answer: B) Only one of the parental traits. 59. Which of the following is an example of genetic variation? A) One person is older than the other. B) One person has a scar but his friend doesn't. C) Reeta eats meat but her sister Geeta is a vegetarian. D) Two children from same parent have different eye color. Show Answer Correct Answer: D) Two children from same parent have different eye color. 60. Where was the first member of the human race Homo sapiens discovered? A) Europe. B) Africa. C) Asia. D) America. Show Answer Correct Answer: B) Africa. ← PreviousNext →Related QuizzesScience QuizzesClass 10 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 6Class 10 Science Chapter 9 Heredity And Evolution Quiz 7Class 10 Science Chapter 9 Heredity And Evolution Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books