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Evolution MCQs | Evolution Multiple Choice Questions (MCQs) and Answers

(1) In which condition gene ratio remains constant in a species?
[A] gene flow
[B] mutation
[C] random mating
[D] sexual selection
Answer: random mating
(2) Lamarck theory of organic evolution is usually known as
[A] Natural selection
[B] Inheritance of acquired characters
[C] Descent with change
[D] continuity of fermplasm
Answer: Inheritance of acquired characters
(3) Which one is used for knowing whether or not a population is evolving?
[A] Degree of evolution
[B] Genetic drift
[C] Proportion between acquired variations
[D] Hardy Weinberg equation
Answer: Hardy Weinberg equation
(4) Balancing selection is concerned with successful reproduction of
[A] Homozygous recessives
[B] homozygous indivduals
[C] heterozygous individuals
[D] None
Answer: heterozygous individuals
(5) Alternative forms of a gene are called
[A] loci
[B] multiples
[C] Chromosomes
[D] Alleles
Answer: Alleles
(6) Heredity or inheritance of specific traits became clearer due to
[A] Lamarck's theory
[B] Mendel worked on garden peas
[C] Darwinism
[D] Neo-Darwinism
Answer: Mendel worked on garden peas
(7) Which of the following sentences is true about the evolutionary process?
[A] There is no real 'progress' in the idea of evolution.
[B] humans are unique, a totally new type of organism.
[C] progress is nature's religion.
[D] Evolution of life forms was rapid in the beginning ages.
Answer: There is no real 'progress' in the idea of evolution.
(8) Microevolution takes place due to
[A] somatogenic variation
[B] blastogenic variation
[C] continuous variation
[D] Successive variation
Answer: blastogenic variation
(9) The difference between Homo sapiens and the Homo erectus was
[A] Homo sapiens originated in Africa while Homo erectus was in Asia
[B] Homo erectus were much smaller in size than homo sapiens.
[C] Homo erectus stayed in Africa while Homo sapiens did not.
[D] The size of their brain of Homo eructus was smaller to homo sapiens
Answer: The size of their brain of Homo eructus was smaller to homo sapiens
(10) By studying analogous structures we look for
[A] similarities in appearance and function but different in structure.
[B] similarities in appearance but differences in functions.
[C] Similarities in organ structure.
[D] Similarities in cell make up.
Answer: similarities in appearance and function but different in structure.
(11) ........ was a predecessor of Darwin and he developed the theory of acquired characteristics.
[A] Weismann
[B] Mendel
[C] Malthus
[D] Lamarck
Answer: Lamarck
(12) Which of these is not a living fossil?
[A] Archaeopteryx
[B] Duck-billed platypus
[C] Lungfish
[D] Frog
Answer: Archaeopteryx
(13) Which of the following are not the examples of analogous structures?
[A] Wings of bat and butterfly.
[B] Wings of bat and forelimb of cattle.
[C] Thorn and spine.
[D] Tendril of Lathyrus and tendril of Gloriossa.
Answer: Wings of bat and forelimb of cattle.
(14) The scientist who cut off the tails of mice of successive generations to prove Lamarck's theory was wrong was
[A] Weismann
[B] Haeckel
[C] Darwin
[D] Wallace
Answer: Weismann
(15) Human being belongs to the species of
[A] Homo erectus
[B] Homo habillis
[C] Homo sapiens
[D] Hominidae
Answer: Homo sapiens
(16) Links between organisms that show branching pattern of evolutionary relationships are shown by
[A] living fossils
[B] comparative embryology
[C] phylogenetic trees
[D] two fossil layers
Answer: phylogenetic trees
(17) Speciation is the evolutionary process by which
[A] a new gene pool is formed
[B] evolutionary paths of species converge
[C] hybrid species formed
[D] Shows up differences in physical traits
Answer: a new gene pool is formed
(18) Evidences of evolutionary relationships is found in
[A] atmosphere
[B] fossils
[C] ocean beds
[D] rocks
Answer: fossils
(19) Which of the following is not a source of variation in a population?
[A] Inherited genetic differences
[B] Differences due to health
[C] Differences due to age
[D] None of the above
Answer: None of the above
(20) Which of the following examples of variation is not important from an evolutionary standpoint?
[A] Genetic differences between individual organisms comprising the population
[B] Inherited differences between individual organisms comprising the population
[C] Differences due to diet, health, age or accident that have no affect on an individual's ability to survive and reproduce
[D] A and B
Answer: Differences due to diet, health, age or accident that have no affect on an individual's ability to survive and reproduce