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CBSE Important Questions(Short questions) for Heredity and Evolution



Q1. What is speciation?
Q2. What are genes and where they are located?
Q3. An organ like a wing in birds is an advantage to the organism. Did they appear in different stages or were formed due to single sudden change in them?
Q4. What happens when a dead insect is caught in hot mud? Give two points?
Q5. If it said that, ‘there is no real progress in the idea of evolution, then what evolution is’? Explain.
Q6. Who is the father of Genetics?
Q7. Write the scientific name of men and garden pea?
Q8. What conclusion was drawn by Mendel after obtaining F2 progeny in a dihybrid cross?
Q9. What is the study of fossils known as?

Q10. Identification of human races was done by a particular trait. Name the trait?
Q11. Explain what happen when in a group of organism, if organisms are not able to survive in changing environmental conditions?
Q12. Explain the two ways by which individuals with a particular trait may increase n a population?
Q13. What is the outcome of genetic drift between two sub. Populations.
 Q14. Sometimes, accidently a dead body  or its part get buried under depositing sediments and are preserved. These are fossils. How can the estimation of the age of fossils be done?
Q15. Why are wings of butterfly ad wings of bat considered analogous? Give reason.
Q16. What is the significance of variation?
Q17. What is natural selection?
Q18. What are dominant and recessive traits?
Q19. 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?
Q20. Why did Mendel select pea plant for conducting his experiment on inheritance?
Q21. The sex of the children is determined by what they inhent from their father and not their mother. Justify.
Q22. What are acquired characters? Give example.
Q23. Explain the terms analogous and homologous organs with examples?
Q24. How gene is responsible for controlling a trait? Explain by giving an example.
Q25. Define Genetics.

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