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Chapters
Chapter 2: Acids, Bases and Salts
Chapter 3: Metals and Non-metals
Chapter 4: Carbon and its Compounds
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 10: Light – Reflection and Refraction
Chapter 11: The Human Eye and the Colourful World
Chapter 12: Electricity
Chapter 13: Magnetic Effects of Electric Current
Chapter 14: Sources of Energy
Chapter 15: Our Environment
Chapter 16: Sustainable Management of Natural Resources
Solutions for Chapter 9: Heredity and Evolution
Below listed, you can find solutions for Chapter 9 of CBSE NCERT for Class 10 Science.
NCERT solutions for Class 10 Science Chapter 9 Heredity and Evolution Intext Questions [Page 143]
If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?
How does the creation of variations in a species promote survival?
NCERT solutions for Class 10 Science Chapter 9 Heredity and Evolution Intext Questions [Page 147]
How do Mendel’s experiments show that the traits may be dominant or recessive
How do Mendel's experiment show that traits are inherited independently?
A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits – blood group A or O – is dominant? Why or why not?
How is the sex of the child determined in human beings?
NCERT solutions for Class 10 Science Chapter 9 Heredity and Evolution Intext Questions [Page 150]
What are the different ways in which individuals with a particular trait may increase in a population?
Why are traits acquired during the life-time of an individual not inherited?
Why are the small numbers of surviving tigers a cause of worry from the point of view of genetics?
NCERT solutions for Class 10 Science Chapter 9 Heredity and Evolution Intext Questions [Page 151]
What factors could lead to the rise of a new species?
Will geographical isolation be a major factor in the speciation of a self-pollinating plant species? Why or why not?
Will geographical isolation be a major factor in the speciation of an organism that reproduces asexually? Why or why not?
NCERT solutions for Class 10 Science Chapter 9 Heredity and Evolution Intext Questions [Page 156]
Give an example of characteristics being used to determine how close two species are in evolutionary terms.
Can the wing of a butterfly and the wing of a bat be considered homologous organs? Why or why not?
What are fossils? What do they tell us about the process of evolution?
NCERT solutions for Class 10 Science Chapter 9 Heredity and Evolution Intext Questions [Page 158]
Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species?
In evolutionary terms, can we say which among bacteria, spiders, fish and chimpanzees have a ‘better’ body design? Why or why not?
NCERT solutions for Class 10 Science Chapter 9 Heredity and Evolution Exercises [Page 159]
A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers, but almost half of them were short. This suggests that the genetic make-up of the tall parent can be depicted as
TTWW
TTww
TtWW
TtWw
An example of homologous organs is
our arm and a dog’s fore-leg.
our teeth and an elephant’s tusks.
potato and runners of grass.
all of the above.
In evolutionary terms, we have more in common with
a Chinese school-boy.
a chimpanzee.
a spider.
a bacterium.
A study found that children with light-coloured eyes are likely to have parents with light-coloured eyes. On this basis, can we say anything about whether the light eye colour trait is dominant or recessive? Why or why not?
How are the areas of study – evolution and classification – interlinked?
Explain the terms analogous and homologous organs with examples.
Outline a project which aims to find the dominant coat colour in dogs.
Explain the importance of fossils in deciding evolutionary relationships.
What evidence do we have for the origin of life from inanimate matter?
Explain how sexual reproduction gives rise to more viable variations than asexual reproduction. How does this affect the evolution of those organisms that reproduce sexually?
How is the equal genetic contribution of male and female parents ensured in the progeny?
Only variations that confer an advantage to an individual organism will survive in a population. Do you agree with this statement? Why or why not?
Solutions for Chapter 9: Heredity and Evolution
NCERT solutions for Class 10 Science chapter 9 - Heredity and Evolution
Shaalaa.com has the CBSE Mathematics Class 10 Science CBSE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. NCERT solutions for Mathematics Class 10 Science CBSE 9 (Heredity and Evolution) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
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Concepts covered in Class 10 Science chapter 9 Heredity and Evolution are Accumulation of Variation During Reproduction, Evolution and Classiffication, Sex Determination, Heredity, Evolution, Speciation, Paleobotany, Evolution by Stages, Origin and Evolution of Man, Gregor Johann Mendel – Father of Genetics, Inheritance of One Gene (Monohybrid Cross), Inheritance of Two Genes (Dihybrid Cross), Evidences for Biological Evolution, Lamarck’s Theory of Evolution, Darwin’s Theory of Natural Selection, Theories of Origin of Life, Mendelian Inheritance - Mendel’s Laws of Heredity, Accumulation of Variation During Reproduction, Evolution and Classiffication, Sex Determination, Heredity, Evolution, Speciation, Paleobotany, Evolution by Stages, Origin and Evolution of Man, Gregor Johann Mendel – Father of Genetics, Inheritance of One Gene (Monohybrid Cross), Inheritance of Two Genes (Dihybrid Cross), Evidences for Biological Evolution, Lamarck’s Theory of Evolution, Darwin’s Theory of Natural Selection, Theories of Origin of Life, Mendelian Inheritance - Mendel’s Laws of Heredity.
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