Principles of Evolution MCQs with Answers

adminApril 6, 2024

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Welcome to the Principles of Evolution MCQs with Answers. In this post, we have shared Principles of Evolution Online Test for different competitive exams. Find practice Principles of Evolution Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Principles of Evolution.

In evolution, species change with time through the processes of forcing biological diversity and adaptation. It is on natural selection, genetic variation, and the inheritance of traits as the bases of the modern biology. The key principles are :

Natural Selection: The term natural selection proposed by Charles Darwin refers to how chances of survival and reproduction favor those who have traits that are useful for the environment. Gradually those well-faring traits spread throughout the population over time.

Variation: Each organism is somehow different in a given population due to mutations, gene recombination, and other mechanisms of variation. Variation gives the fodder on which natural selection acts, making some of them “fitter” than others for survival.

Inheritance: Indeed, it is the genes that pass on traits from generation to generation. Offsprings will result in a mix of traits acquired from their parents and may even lead to new variations.

Mutation: DNA sequence changes are indeed random and some of them can be neutral, harmful or positive. Mutations occur over long periods and thus contribute to genetic diversity. This is one source of evolutionary change.

Genetic drift: The randomness of the events that take place may increase or decrease the allele frequency regardless of its contribution to fitness. It is a fundamental process that can make a population change drastically from one generation to another.

Speciation: Thus, speciation is a result of evolutionary processes. The new species appears when populations of living organisms are separated geographically or reproductively and hence diverge due to natural selection, genetic drift, and mutation.

Adaptation: The traits of the living organisms are changed in a way that most individuals of a species survive and reproduce successfully within an environment. Adaptations can be structural, behavioral or physiological. Altogether, these principles explain how life is adapted and diversified in the presence of environmental pressures and genetic variation and account for the rich diversity of species that we now find on Earth.

Principles of Evolution Online Quiz

By presenting 3 options to choose from, Principles of Evolution Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Principles of Evolution Questions and Answers and click over the correct answer.

Test Name: Principles of Evolution MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Principles of Evolution

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1 / 40

The principle that organisms with traits best suited to their environment are more likely to survive and reproduce is known as _____.

Genetic drift

Natural selection

Lamarckism

2 / 40

The theory of evolution by natural selection was independently proposed by _____.

Alfred Russel Wallace

Jean-Baptiste Lamarck

Charles Darwin

3 / 40

The process by which favorable traits become more common in a population over time is known as _____.

Sexual selection

Natural selection

Artificial selection

4 / 40

Which of the following is NOT a condition for natural selection to occur?

Non-random mating

Genetic variation within the population

Differential survival and reproduction

5 / 40

The genetic composition of a population changes over time due to _____.

Gene flow

Genetic drift

Natural selection

6 / 40

The study of the distribution of species and their evolutionary relationships is called _____.

Paleontology

Phylogenetics

Biogeography

7 / 40

The process by which a new species evolves from a pre-existing species is called _____.

Convergence

Speciation

Divergence

8 / 40

Which of the following is a mechanism of microevolution?

Speciation

Continental drift

Genetic drift

9 / 40

Who proposed the theory of natural selection?

Gregor Mendel

Charles Darwin

Jean-Baptiste Lamarck

10 / 40

The principle of uniformitarianism suggests that _____.

Geological processes were different in the past

Present geological processes are the key to understanding past geological events

Geological processes occur at a uniform rate over time

11 / 40

The genetic composition of a population changes over time due to _____.

Genetic drift

Natural selection

Gene flow

12 / 40

The process by which traits that confer a survival advantage become more common in a population over time is called _____.

Natural selection

Genetic drift

Gene flow

13 / 40

The genetic composition of a population changes over time due to _____.

Natural selection

Genetic drift

Gene flow

14 / 40

Evolutionary changes that occur rapidly over a short period of time are known as _____.

Gradualism

Adaptive radiation

Punctuated equilibrium

15 / 40

Evolutionary changes that occur rapidly over a short period of time are known as _____.

Punctuated equilibrium

Adaptive radiation

Gradualism

16 / 40

Which of the following is an example of directional selection in action?

Stable population sizes over time

No change in allele frequencies over time

Dark-colored moths becoming more common during industrial pollution

17 / 40

The study of how populations change over time is called _____.

Paleontology

Population genetics

Evolution

18 / 40

Which of the following is an example of directional selection in action?

Stable population sizes over time

No change in allele frequencies over time

Dark-colored moths becoming more common during industrial pollution

19 / 40

The process by which traits that confer a survival advantage become more common in a population over time is called _____.

Genetic drift

Gene flow

Natural selection

20 / 40

Evolutionary changes that occur rapidly over a short period of time are known as _____.

Punctuated equilibrium

Gradualism

Adaptive radiation

21 / 40

The ability of a population to undergo natural selection depends on _____.

Geographic isolation

Genetic variation

Absolute fitness

22 / 40

The study of the distribution of species and their evolutionary relationships is called _____.

Biogeography

Phylogenetics

Paleontology

23 / 40

Evolutionary changes that occur rapidly over a short period of time are known as _____.

Punctuated equilibrium

Adaptive radiation

Gradualism

24 / 40

Genetic variation within a population is maintained by _____.

Mutation

Sexual reproduction

Gene flow

25 / 40

Which of the following is an example of directional selection in action?

Dark-colored moths becoming more common during industrial pollution

No change in allele frequencies over time

Stable population sizes over time

26 / 40

The process by which a new species evolves from a pre-existing species is called _____.

Divergence

Convergence

Speciation

27 / 40

Genetic drift is more likely to occur in _____.

Stable environments

Small populations

Large populations

28 / 40

Which of the following is NOT a condition for natural selection to occur?

Genetic variation within the population

Differential survival and reproduction

Non-random mating

29 / 40

The process by which a new species evolves from a pre-existing species is called _____.

Speciation

Divergence

Convergence

30 / 40

The process by which new species arise is known as _____.

Genetic drift

Speciation

Natural selection

31 / 40

Natural selection acts on _____.

Phenotypes

Genotypes

Chromosomes

32 / 40

Which of the following is NOT a requirement for natural selection to occur?

Genetic variation

Non-random mating

Differential survival and reproduction

33 / 40

In the context of evolution, fitness refers to _____.

Physical strength

Intelligence

Ability to survive and reproduce

34 / 40

The genetic composition of a population changes over time due to _____.

Gene flow

Natural selection

Genetic drift

35 / 40

The Hardy-Weinberg equilibrium describes a situation where _____.

Genetic drift is absent

Allele frequencies remain constant over generations

Mutation rates increase

36 / 40

The term "fitness" in the context of natural selection refers to an organism's _____.

Physical strength

Ability to survive and reproduce

Intelligence

37 / 40

The idea that all species are descended from a common ancestor and have changed over time is known as _____.

Gradualism

Descent with modification

Punctuated equilibrium

38 / 40

The study of the distribution of species and their evolutionary relationships is called _____.

Phylogenetics

Biogeography

Paleontology

39 / 40

Which of the following is NOT a condition for natural selection to occur?

Non-random mating

Genetic variation within the population

Differential survival and reproduction

40 / 40

The process by which traits that confer a survival advantage become more common in a population over time is called _____.

Natural selection

Gene flow

Genetic drift

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adminApril 6, 2024

0 19 3 minutes read