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Class 10 Science Chapter 9 Heredity And Evolution Quiz 6 (60 MCQs)

Quiz Instructions

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1. ..... brings the coded message from the DNA
2. All males have the genotype XY and all females have genotypes XX.
3. Mendel experiment with tall and staff pea plant showed that the traits may be
4. Which of the following affects the process of speciation?
5. According to the concept of "survival of the fittest, " if a population of birds eats worms that they find deep under ground by using their beaks, which members of the bird population would be more fit?
6. Which of these did you inherit from you parents?
7. The tail bone, wisdom teeth, and appendix are all parts of the human anatomy that would be considered .....
8. Arrange the following events in chronological order and choose the correct option1)last dinosaurs disappeared2)monkey like animals similar to modern lemurs evolved 3)ape like animals evolved into gibbon and orangutan 4)gorilla and chimpanzees evolved
9. Each organism has 2 alleles for a particular trait. Where do these two alleles come from?
10. Has 2 different alleles is .....
11. Homologous organ have
12. Mendelian monohybrid phenotypic ratio is:
13. If a population becomes isolated from other populations of the same species and then genetic differences start to occur, what happens?
14. Pure breeding pea plants with green pods are crossed with pure breeding pea plants with yellow pods. All the F1 generation plants have green pods. Plants from the F1 generation are allowed to be interbred. What colour of pods will be observed in F2 generation plants?
15. About 10 thousand years ago ..... started a practices of agriculture.
16. Assertion (A):Mendel selected the pea plant for his experiments.Reason (R):Pea plant is cross-pollinating and has unisexual flowers.
17. Who observed variations in the characteristics of plants and animals on the Galapagos?
18. The term for the formation of new and distinct species over the course of evolution is .....
19. Two parents have type O blood. What will the blood type of their children be?
20. A diagram used to predict the outcomes of a genetic cross:
21. The wings of housefly and the wings of bat are example of
22. Codons are made of how many amino acids?
23. The phenomenon that studies how new species are formed is known as
24. Assertion (A):A geneticist crossed two pea plants and got 50% tall and 50% dwarf in the progeny.Reason (R):One plant was heterozygous tall and the other was dwarf.
25. How many pairs of non-sex chromosomes are there in humans?
26. A fossil of an extinct dinosaur is found and the anatomy of the fossil shows similarities to that of a bird. What could this mean?
27. An organism's physical appearance of visible traits is a .....
28. The concept of use or disuse of organs was given by
29. Carbon dating is a method used in which process?
30. The genetic code can help you translate mRNA into ..... ?
31. In which of the following organisms sex is determined by the temperature at which fertilized eggs are kept?
32. A new form of plant resulting from a cross (or breeding) of different varieties of a plant is known as
33. The appendix is useful in ruminants in digestion of which of this compounds?
34. A cross in which two contrasting characters are studied is called .....
35. Colour blindness is a recessive X-linked disorder in which human beings are unable to distinguish red and green colours.Akshay is colour blind. What is the chance of his son inheriting colour blindness from him?
36. The transfer of various characters from parent to child is called .....
37. Which of the following statement is not true with respect to variation?
38. Dominant or recessive?tt
39. Human baby will be a female if its 23rd chromosome pair is
40. . Which of these is a pair of an analogous organ?
41. Heredity is defined as
42. What is the genotype of a pure tall plant?
43. A student wants to collect homologous organs for his project. Which of the following pair should he select for his project?
44. If one strand of DNA has the sequence TTACCG, the sequence of the other strand of the same molecule will be
45. Populations of species which do not adapt to their environment can eventually become .....
46. Where the better adapted organisms survive to pass traits along to offspring.
47. DNA is found in the nucleus of the cell
48. In a dihybrid cross, how many boxes does the punnet square need to have?
49. When Mendel crossed pure bred tall and short pea plants, in the F1 generation he obseved
50. What is the study of organisms at the early stages of development?
51. As per the message on mRNA, amino acids are supplied by tRNA this is called as .....
52. Who discovered the triplet codon for 20 amino acids.
53. Evolution explains the origin of .....
54. The emergence of new rivers or streams is a type of ..... isolation.
55. The gradual change occurring in living organisms over a long duration is called as?
56. Exchange of genetic material takes place in:
57. Hugo de Vries introduced the concept of sudden change in genes known as
58. Dominant alleles are represented with a:
59. The visible charactersstics in an organism are known as
60. Evolution means that organisms changed "by chance"
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