Topic Details (Notes format)

Heredity and Genetic Variation

Subject: General Science

Book: NCERT Biology Class 12

Study of genetic inheritance and evolution.
- **Mendel’s Laws of Inheritance**:
- Dominance, segregation, independent assortment.
- **Genetic Disorders**:
- Hemophilia, sickle cell anemia, Down syndrome.
- **Mutation and Its Effects**:
- Gene mutations and chromosomal aberrations.

**Possible Exam Questions:**
1. Explain Mendel’s laws of inheritance.
2. What are genetic disorders? Give examples.
3. How does mutation lead to genetic variation?
4. Differentiate between dominant and recessive traits.
5. What is the significance of genetic recombination?

Practice Questions

Which of the following is a fundamental force in nature?

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Which part of the cell contains the genetic material?

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Which component of blood carries oxygen?

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Which is the smallest bone in the human body?

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What is the most abundant element in the universe?

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What is the primary function of red blood cells (RBCs) in the human body?

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Which process in plants is responsible for the loss of water vapor?

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Which organ stores and releases glucose in the human body?

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What is the chemical formula for carbon dioxide?

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What is the unit of frequency?

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