Class 10th Science Chapter – 8 Heredity MCQ With Answer

September 11, 2023

Class 10th Science Chapter – 8 Heredity

Textbook	NCERT
Class	10^th
Subject	Science
Chapter	8^th
Chapter Name	Heredity
Category	Class 10th Science
Medium	English
Source	Last Doubt

NCERT Solutions Class 10th Science Chapter – 8 Heredity MCQ In This Chapter we will learn about Heredity and Evolution, Heredity and Evolution, Law of Dominance, Law of Segregation, Male, Female, Sex Determination in Humans and more such things for more knowledge about this Chapters read their MCQ.

Class 10th Science Chapter – 8 Heredity

Chapter – 8

Heredity

MCQ

(1) Which of the following statements is true about Lamarck’s theory of evolution?

A. It suggests that organisms can acquire new characteristics through use or disuse of body parts
B. It suggests that organisms are randomly selected for survival based on their inherited traits
C. It suggests that all organisms have a common ancestor
D. It suggests that the environment plays no role in the evolution of species

Ans – (A) It suggests that organisms can acquire new characteristics through use or disuse of body parts

(2) The theory of natural selection was proposed by

A. Gregor Mendel
B. Charles Darwin
C. Thomas Malthus
D. Jean-Baptiste Lamarck

Ans – (B) Charles Darwin

(3) Which of the following is NOT a mechanism of evolution?

A. Mutation
B. Genetic drift
C. Migration
D. Inbreeding

Ans – (D) Inbreeding

(4) The process of formation of new species from an existing species is called

A. Evolution
B. Speciation
C. Adaptation
D. Selection

Ans – (B) Speciation

(5) Which of the following is NOT a type of natural selection?

A. Stabilising selection
B. Directional selection
C. Disruptive selection
D. Artificial selection

Ans – (D) Artificial selection

(6) Which of the following statements is true about genetic drift?

A. It occurs when a small group of individuals leave a larger population to form a new population
B. It results in a change in allele frequencies due to chance events
C. It occurs when individuals with certain traits are selected for survival and reproduction
D. It leads to the formation of new species

Ans – (B) It results in a change in allele frequencies due to chance events

(7) The genetic makeup of an organism is called its

A. Genotype
B. Phenotype
C. Allele
D. Chromosome

Ans – (A) Genotype

(8) The study of the distribution of plants and animals around the world is called

A. Biogeography
B. Paleontology
C. Comparative anatomy
D. Molecular biology

Ans – (A) Biogeography

(9) Which of the following is an example of homologous structures?

A. Wings of a bird and wings of a bat
B. Wings of a bird and fins of a fish
C. Wings of a bird and arms of a human
D. Wings of a bird and legs of a grasshopper

Ans – (C) Wings of a bird and arms of a human

(10) The process of formation of a new species without geographic isolation is called

A. Allopatric speciation
B. Sympatric speciation
C. Hybridisation
D. Convergent evolution

Ans – (B) Sympatric speciation

(11) Which of the following is an example of convergent evolution?

A. Wings of a bird and wings of a bat
B. Wings of a bird and fins of a fish
C. Wings of a bird and wings of an insect
D. Wings of a bird and legs of a grasshopper

Ans – (C) Wings of a bird and wings of an insect

(12) The number of chromosomes in a human gamete is

A. 23
B. 46
C. 92
D. 69

Ans – (A) 23

(13) The occurrence of two or more alleles of a gene in a population is called

A. Polymorphism
B. Homozygosity
C. Heterozygosity
D. Inbreeding

Ans – (A) Polymorphism

(14) Which of the following is NOT a mechanism of genetic variation?

A. Mutation
B. Sexual reproduction
C. Genetic drift
D. Gene flow

Ans – (C) Genetic drift

(15) Which of the following is a drawback of asexual reproduction?

A. It results in genetically diverse offspring
B. It allows for rapid reproduction in favorable conditions
C. It increases the chances of survival in a changing environment
D. It results in no genetic variation in offspring

Ans – (D) It results in no genetic variation in offspring

NCERT Solution Class 10th Science All Chapters MCQ

Chapter 1 – Chemical Reactions and Equations

Chapter 2 – Acids, Bases, and Salts

Chapter 3 – Metals and Non-Metals

Chapter 4 – Carbon and Its Compounds

Chapter 5 – Life Processes

Chapter 6 – Control and Coordination

Chapter 7 – How Do Organisms Reproduce

Chapter 8 – Heredity

Chapter 9 – Light reflection and refraction

Chapter 10 – Human eye and colorful world

Chapter 11 – Electricity