Question Paper
Class / Subject: Class 10 (CBSE) · Science
Chapter: Chapter 8 — Chapter 8: Heredity and Evolution
Time Allowed: 15 minutes
Max Marks: 6
1. Mendel is known as the father of: [1]
(A) genetics
(B) evolution
(C) ecology
(D) physiology
2. Mendel's Law of Dominance states that: [1]
(A) a dominant trait masks a recessive trait
(B) both traits blend equally
(C) recessive traits always appear
(D) traits are inherited only from the mother
3. The Law of Independent Assortment states that: [1]
(A) alleles for different traits are inherited independently
(B) all traits are inherited together
(C) only dominant traits are inherited
(D) traits skip a generation
4. The process by which favourable traits become more common in a population is called: [1]
(A) natural selection
(B) genetic drift only
(C) mutation only
(D) cloning
5. Homologous organs, like a human arm and a bat's wing, are evidence of: [1]
(A) evolution from a common ancestor
(B) unrelated species
(C) identical function only
(D) no biological relationship
6. Antibiotic-resistant bacteria are an example of: [1]
(A) natural selection in action
(B) asexual reproduction only
(C) heredity without variation
(D) artificial selection only