Question Paper
Class / Subject: Class 9 (SSC) · Science and Technology (विज्ञान आणि तंत्रज्ञान)
Chapter: Chapter 16 — Chapter 16: Heredity and Variation
Time Allowed: 32 minutes
Max Marks: 16
1. What carries hereditary information? [1]
(A) Genes on chromosomes
(B) Only blood
(C) Only skin cells
(D) Nothing carries it
2. What do Mendel's laws explain? [1]
(A) How traits are passed down
(B) Only physical growth
(C) Only diseases
(D) Nothing about genetics
3. What are dominant and recessive alleles? [1]
(A) Types of genes determining traits
(B) Types of diseases
(C) Types of cells
(D) Types of organs
4. What causes variation? [1]
(A) Genetic differences and environment
(B) Only genetics
(C) Only environment
(D) Neither factor
5. What is a mutation? [1]
(A) A genetic change causing variation
(B) A type of disease only
(C) A type of organ
(D) No genetic relevance
6. What do heredity and variation drive? [1]
(A) Evolution
(B) No biological process
(C) Only disease
(D) Only growth
7. What happens to advantageous variations? [1]
(A) They can be naturally selected
(B) They are always eliminated
(C) They have no effect
(D) They disappear immediately
8. Why learn about heredity and variation? [1]
(A) To understand biological diversity and evolution
(B) No reason
(C) It's not useful
(D) Only for tests
9. What carries hereditary information? [1]
(A) Genes on chromosomes
(B) Only blood
(C) Only skin cells
(D) Nothing carries it
10. What do Mendel's laws explain? [1]
(A) How traits are passed down
(B) Only physical growth
(C) Only diseases
(D) Nothing about genetics
11. What are dominant and recessive alleles? [1]
(A) Types of genes determining traits
(B) Types of diseases
(C) Types of cells
(D) Types of organs
12. What causes variation? [1]
(A) Genetic differences and environment
(B) Only genetics
(C) Only environment
(D) Neither factor
13. What is a mutation? [1]
(A) A genetic change causing variation
(B) A type of disease only
(C) A type of organ
(D) No genetic relevance
14. What do heredity and variation drive? [1]
(A) Evolution
(B) No biological process
(C) Only disease
(D) Only growth
15. What happens to advantageous variations? [1]
(A) They can be naturally selected
(B) They are always eliminated
(C) They have no effect
(D) They disappear immediately
16. Why learn about heredity and variation? [1]
(A) To understand biological diversity and evolution
(B) No reason
(C) It's not useful
(D) Only for tests