Free Evolution MCQs with Answers
814 Evolution MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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Read the Evolution notesFree MDCAT chapter notes with key terms814 questions · page 12 of 41
- A. Interaction
- B. Ancestry
- C. Hereditary constitution
- D. Phenotype
Explanation: Survival in the struggle for existence is not random, but depends in part on the hereditary constitution of the surviving individuals.
Correct answer: Hereditary constitution- A. Asian lion
- B. Green parrot
- C. Indian rhino
- D. Cheetah
Explanation: In Pakistan. Cheetah. Tiger. Asian lion. Indian rhino. Cheer pheasant, Crocodile and Gavial have been declared extinct.
Correct answer: Green parrot- A. Functional organs
- B. Visceral organs
- C. Vestigial organs
- D. Assimilatory organs
Explanation: Vestigial organs are organs, tissues or cells in a body which are no more functional the way they were in their ancestral form of the…
Correct answer: Vestigial organs- A. Genus
- B. Phylum
- C. Division
- D. Group
Explanation: a category of classification in biology that ranks between the family and the species, contains related species, and is named by a…
Correct answer: Genus- A. None
- B. Lynn Margulis
- C. Darwin
- D. Linnaeus
Explanation: According to the theory of special creation, all living things came into existence in their present forms especially and specifically…
Correct answer: Linnaeus- A. 120°C
- B. 60°C
- C. 70°C
- D. None
Explanation: A group of bacteria, called archaebacteria that tolerate temperatures up to 120°C and seem to have undergone less evolutionary change than…
Correct answer: 120°C- A. C. Linnaeus
- B. Lynn Margulis
- C. None
- D. Darwin
Explanation: Endosymbiont hypothesis (Fig.24.la) and was first proposed by Lynn Margulis.
Correct answer: Lynn Margulis- A. C. Linnaeus
- B. None
- C. Lynn Margulis
- D. Darwin
Explanation: He joined the expedition on Beagle to the South American coastline. He observed and collected thousands of specimens of diverse fauna and…
Correct answer: Darwin- A. Sedimentary rocks
- B. Lamarck
- C. Homologus organs
- D. Analogous organs
Explanation: According to Lamarck, organisms altered their behavior in response to environmental change.
Correct answer: Lamarck- A. Sedimentary rocks
- B. Lamarck
- C. Homologous organs
- D. Hydrothermal vents
Explanation: Most fossils are found in sedimentary rocks.
Correct answer: Sedimentary rocks- A. Hydrothermal vents
- B. Sedimentary rocks
- C. Analogous organ
- D. Homologous organs
Explanation: Homologous organs are organs that have the same structural organization but different functional properties.
Correct answer: Homologous organs- A. Homologous organs
- B. Sedimentary rocks
- C. Analogous organs
- D. Hydrothermal vents
Explanation: Hydrothermal vents are the result of seawater percolating down through fissures in the ocean crust in the vicinity of spreading centers or…
Correct answer: Hydrothermal vents- A. Mutation
- B. Lamarck
- C. Membrane invagination hypothesis
- D. Population
Explanation: Originally, invagination was the most widely accepted theory that explained the origin of eukaryotic organelles.
Correct answer: Membrane invagination hypothesis234. Neo-Darwinism is:
- A. Modern synthesis
- B. Population
- C. Mutation
- D. Lamarckism
Explanation: A comprehensive theory of evolution that became known as the modern synthesis or Neo-Darwinism was developed in the early 1940s.
Correct answer: Modern synthesis- A. Lamarckism
- B. Membrane invagination hypothesis
- C. Modern synthesis
- D. Population
Explanation: Population, in biology, is defined as all the organisms of the same group or species that live in a specific area and are capable of…
Correct answer: Population- A. Lamarckism
- B. Modern synthesis
- C. Population
- D. Mutation
Explanation: Any change in the DNA sequence of a cell. Mutations may be caused by mistakes during cell division, or they may be caused by exposure to…
Correct answer: Mutation237. Wings of bats show:
- A. Fixed
- B. Hardy Weinberg theorem
- C. Convergent evolution
- D. Variable
Explanation: In evolutionary biology, convergent evolution is defined as the process whereby distantly related organisms independently evolve similar…
Correct answer: Convergent evolution238. (p + q)2 shows:
- A. Variable
- B. Hardy Weinberg theorem
- C. Fixed allele
- D. Extinct species
Explanation: The Hardy-Weinberg equilibrium is a principle stating that the genetic variation in a population will remain constant from one generation…
Correct answer: Hardy Weinberg theorem- A. Extinct species
- B. Hardy Weinberg theorem
- C. Convergent evolution
- D. Fixed
Explanation: Extinction is the complete disappearance of a species from Earth. Species go extinct every year, but historically the average rate of…
Correct answer: Extinct species- A. Extinct species
- B. Fixed
- C. Hardy Weinberg theorem
- D. Convergent evolution
Explanation: A fixed allele is homozygous for all members of the population. The process by which alleles become fixed is called fixation.
Correct answer: Fixed