In this article, you will find Class 10 Science Chapter 9 Heredity and evolution Extra Questions of Biology. Chapter 9 Heredity and Evolutions Class 10 describes Heredity, laws of Inheritance, Mendel and Mentalism, the process of evolution and evidence, etc. you can solve these extra questions of chapter 9 after studying solutions of chapter 9 NCERT for class 10
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| Class 10 Science Chapter 9 Heredity and Evolution Extra Questions |
In Class 10 Science Chapter 9 Heredity and Evolution Extra Questions, you will find extra questions of the chapter and you will certainly practice them.
Class 10 Science Chapter 9 Heredity and Evolution Extra Questions
Class 10 Science Chapter 9 Heredity and Evolutions Extra Questions, will be very helpful and useful in the context of your upcoming board examinations.
Class 10 Science Chapter 9 Heredity and Evolution Extra Questions
If you find any
difficulty in finding answers to Class 10 Science Chapter 9 Heredity and Evolutions, then go through NCERT
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CHAPTER- 9 - HEREDITY AND EVOLUTION
1.
What is heredity?
2.
What do you mean by genetics?
3.
What are acquired traits and inherited traits?
4.
If a trait A exists in 10% of a population of
an asexually reproducing species and trait B exists in 60% of the same
population, which trait is likely to have arisen earlier?
5.
How does the creation of variations in a
species promote survival?
6.
What is the earlobe?
7.
What do you mean by dominant and recessive
traits?
8.
On which plant did Mendel perform his
experiment?
9.
Why did Mendel select pea plants for his
experiments?
10. What is hybridization?
11. What do you mean by monohybrid cross?
12. What do you mean by dihybrid cross?
13. Name the laws based on monohybrid cross.
14. Name of the laws based on dihybrid cross.
15. What is the phenotype and genotype ratio in a monohybrid cross?
16. What is the phenotype and genotype ratio in
dihybrid cross?
17. Explain the experiment of the monohybrid cross done by Mendel.
Give a suitable diagram.
18. Explain the experiment of the dihybrid cross done by Mendel.
19. How do Mendel’s experiments show that traits may be dominant or recessive?
20. How is the sex of the child determined in human
beings?
21. What are the different ways in which
individuals with a particular trait may increase in a population?
22. Why are traits acquired during the lifetime
of an individual not inherited?
23. What factors could lead to the rise of a new
species?
24. Will geographical isolation be a major factor
in the speciation of an organism that reproduces asexually? Why or why not?
25. What are homologous and analogous organs? Give
examples.
26. What are vestigial organs?
27. State the pieces of evidence in support of organic
evolution?
28. How the age of fossils is estimated?
29. What is a fossil? How are they formed?
30. Can a wing of a butterfly and the wing of a
bat be considered homologous organs? Why or why not?
31. Why are human beings who look so different
from each other in terms of size, colour and looks, said to be the same species?
32. Explain the importance of fossils in deciding
evolutionary relationships?
33. How is the equal genetic contribution of male
and female parents ensured in the progeny?
34. Describe the ‘laws of inheritance’ given by
Mendel?
35. What is the botanical name of a garden pea?
36. Describe the dihybrid cross experiment
performed by Mendel?
37. How does the mechanism of heredity work?
Or
How do the traits get expressed?
38. Name the organism that can change its sex.
39. Mention three features of fossils that help
in the study of evolution.
40. How can you say that the sex of the child is
determined by the father only?
41. What is evolution?
42. Describe the experiment done by Miller and
Harold.
43. Who gave the theory of ‘Natural selection?
44. Who suggested that life on the earth must have
developed from simple inorganic molecules?
45. Mention the information source of making
proteins in the cell.
46. What do you mean by speciation?
47. What factors could lead to the rise of a new
species?
48. Will geographical isolation be a major factor
in the speciation of self-pollinating plant species? Why or why not?
49. What is the basic event in reproduction?
50. Will geographical isolation be a major factor in the speciation of an organism that
reproduces asexually? Why or why not?
51. Why do all the gametes formed in human females
have an X-chromosome?
52. What are homologous organs? Give an
example.[annual exam -2011]
53. Explain sex determination in human beings with the help of a line diagram.[
Annual exam-2012]
54. A woman has only daughters. Is she responsible
for this situation?
55. Explain the importance of fossils in organic
evolution.[Annual exam -2013]
56. Draw the diagram to obtain the ratio of F2
progeny, as a result, f crossing between tall pea plant (dominant) with short pea
plant(recessive).[Annual exam-2013]
57. What is the observation in F2
generation if parental plants are pure tall and pure dwarf?
58. What do you understand by biological
hierarchy?
59. What do
you mean by’ characteristics’?
60. State the pieces of evidence in support of organic
evolution.
61. Name the fossil that is a link between birds
and reptiles.
62. How evolution is related to hierarchy and
classification?
63. Name the missing links which support the principle
of organic evolution.
64. Describe different human races.
65. What tools are used to study the evolution of
human beings?
66. How homologous and analogous organs are
helpful in the concept of organic evolution?
67. State the importance of vestigial organs also.
68. Trace out the evolution of Homo sapiens.
69. Explain the abiogenesis theory of the origin of
life.
70. Why are acquired traits not passed on to the next
generation?
71. Does a genetic combination of the mother play a
significant role in determining the sex of the born child?
72. Why variations are beneficial to the species?
73. Name the author of the book ‘The Origin of
species’.
74. How can we know how old a fossil is?
NCERT Solutions for Class 10 Science All Chapters below
- Chapter 1 Chemical Reactions and Equations
- Chapter 2 Acids, Bases, and Salts
- Chapter 3 Metals and Non-metals
- Chapter 5 Periodic Classification of Elements
- Chapter 6 Life Processes
- Chapter 7 Control and Coordination
- Chapter 8 How Do Organisms Reproduce?
- Chapter 9 Heredity and Evolution
- Chapter 14 Sources of Energy
- Chapter 16 Management of Natural Resources
MCQ Questions for Class 10 Science PDf free download
- MCQs Questions for Class 10 Science Chemistry Chapter 1
- MCQ Questions for Class 10 Science Chemistry Chapter 2
- MCQ Questions for Class 10 Science Chemistry Chapter 3
- MCQ Questions for Class 10Science Chemistry Chapter 4
- MCQ Questions for Class 10 Science Chemistry Chapter 5
- MCQ Questions for Class 10 Science Biology Chapter6
- MCQ Questions for Class 10 Science Physics Chapter 11
- MCQ Questions for Class 10 Science Biology Chapter 8
- MCQ Questions for Class 10 Science Physics Chapter 10
- MCQ Questions for Class 10 Science Physics Chapter 12
- MCQ Questions for Class 10 Science Physics Chapter 13
- MCQ Questions for Class 10 Science Biology Chapter 15
Here you have been provided Online MCQ Quiz Test- Click the link below
MCQ Class 10 Science Chapter 1 Chemical Reactions and Equations Online Quiz- Set A
MCQ Class 10 Science Chapter 1 Chemical Reaction and Equations Online Quiz - Set B
Extra Questions Class 10 Science
Click the link given below-
1. Chemical Reactions and Equations Extra Questions
2. Acids.Bases and Salts Extra Questions
3. Metals and Non-Metals Extra Questions
5. Periodic Classification of Elements
10.Light- Reflection and Refraction
11. The Human Eye and The Colourful World
12. Electricity
13. Magnetic Effects of Electric Current
15. Our Environment
16. Management of Natural Resources
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