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Class 10 Science Chapter 9 Heredity And Evolution Quiz 1 (60 MCQs)

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1. A rose plant has two genes for the expression of flower colour, R and r. So for flower colour, the rose plant is:
2. A characteristic that an organism can pass on to its offspring through its genes
3. The scientist who gave theory of evolution
4. A group of organisms in which all organisms can reproduce to give birth to a fertile offspring is called .....
5. The ratio of pure tall and pure short plant in F2 generation is
6. Analogous organs have
7. Which structure will be found in the nucleus of a body cell in a woman?
8. The science of heredity is not used for .....
9. Characters that are passed on from parents to offspring are also known as
10. Organs which are of similar origin and shape but perform different functions are examples of
11. This trait always shows up in an organism when the allele is present
12. When the two alleles of a particular gene are different:
13. Branch dealing with the study of fossils is
14. What is the correct defintion of a species?
15. Who introduced the theory of Survival of fittest?
16. ..... is not a vestigial organ in man
17. Corals are dying due to global warming. Evolution will eventually help the corals to survive in warmer waters.
18. What is natural selection?
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.
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?
21. Which part of the DNA provides information for a protein?
22. Process of RNA synthesis is called as .....
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:
24. Who is considered as the father of Evolution
25. Theory of inheritance of acquired characters is also known as
26. This trait is hidden whenever the dominant allele is present
27. The trait transfer from one generation to another generation
28. The heridity units, which are stretches of DNA called:
29. Which statement about the human sex chromosomes is correct?
30. The crossing of two pea plant which differ in two character is known as
31. Which of these parents will produce an offspring that does NOT look like its parents when it is you?
32. Carbon consumption of animals and plants stops after death and since then, only the decaying process of what occurs continuously?
33. 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
34. Which of the following group has maximum number of common characters?
35. What is the genotypic ratio in dihybrid cross?
36. An organism that has two different alleles for a trait (hybrid)
37. Mendel used a number of contrasting visible characteristics of .....
38. Kyree is heterozygous. If (W) is for waves, and (w) if for no waves.What is Kyree's genotype & phenotype?
39. In Mendel's monohybrid cross, the F$_{2}$ phenotypic ratio is
40. How does a breeder of Cocker Spaniels make sure every puppy the raise look like a Cocker Spaniel?
41. Reena is suffering from a genetic disorder known as sickle cell anemia which of the following processes is the cause of her condition
42. A trait in an organism is influenced by
43. 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.
44. Which of the following are necessary for evolution by natural selection to take place?
45. What does mRNA do?
46. 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
47. A zygote that has an X-chromosome inherited from the father will develop into a
48. ..... proposed a model for protein synthesis with the help of DNA in bacterial cells.
49. Modern man differs from australopithecus in which of the following aspects
50. The condition where two alleles of a specific trait are different.
51. Which of the following would represent a sudden environmental change?
52. What makes up a codon?
53. On which of the following characteristics of pea plant did Mendel worked upon?
54. Which of the following is/are unicellular organism(s)?
55. Charles Darwin had collected innumerable specimens of plants and animals and depending upon the observations of those specimens. He published it in a book called as?
56. One among these proposed the theory of natural selection
57. An organism's genetic makeup is a .....
58. . If the fossil of an organism is found in the deeper layers of earth, then we can predict that:
59. Assertion:Pea plant is considered ideal for hybridisation experiments.Reason:Pea is a self-pollinating plant with short life cycle and bears visible contrasting traits.
60. What does tRNA stand for?
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