Refer to NEET UG Biology Evolution MCQs provided below available for download in Pdf. The MCQ Questions for Full Syllabus Biology with answers are aligned as per the latest syllabus and exam pattern suggested by NEET, NCERT and KVS. Multiple Choice Questions for Evolution are an important part of exams for Full Syllabus Biology and if practiced properly can help you to improve your understanding and get higher marks. Refer to more Chapter-wise MCQs for NEET Full Syllabus Biology and also download more latest study material for all subjects
MCQ for Full Syllabus Biology Evolution
Full Syllabus Biology students should refer to the following multiple-choice questions with answers for Evolution in Full Syllabus.
Evolution MCQ Questions Full Syllabus Biology with Answers
IMPORTANT POINTS
The origin of life on earth can be understood only against the background origin of universe especially earth. Most scientists believe chemical evolution, i.e., formation of biomolecules preceded the appearance of the first cellular forms of life. The subsequent events as to what happened to the first form of life is a conjectured story based on Darwinian ideas of organic evolution by natural selection. Diversity of life forms on earth has been changing over millions of years. It is generally believed that variations in a population result in variable fitness. other phenomena like habitat fragmentation and genetic drift may accelerate these variations leading to appearance of new species and hence evolution. Homology is accounted for by the idea of branching descent. Study of comparative anatomy, fossils and aomparative biochemistry provides evidence for evolution. Among the stories of evolution of individual species, the story of evolution of modern man is most interesting and appears to parallel evolution of human brain and language.
1. Alternative forms of a gene are called _____________.
a) loci b)multiples c) Chromosomes d) Alleles
2. 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
3. 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.
4. Microevolution takes place due to
a) somatogenic variation
b) blastogenic variation
c) continuous variation
d) Successive variation
5. 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
6. 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.
7. __________ was a predecessor of Darwin and he developed the theory of acquired characteristics.
a) Weismann b) Mendel c) Malthus d) Lamarck
8. Which of these is not a living fossil?
a) Archaeopteryx b) Duck-billed platypus c) Lungfish d) Frog
9. 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.
10. 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
11 Human being belongs to the species of_____.
a) Homo erectus
b) Homo habillis
c) Homo sapiens
d) Hominidae
12. 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
13. 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
14. Evidences of evolutionary relationships is found in ______.
a) atmosphere
b) fossils
c) ocean beds
d) rocks
15. 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.
16. 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.
17. Why is genetic variation important from an evolutionary standpoint?
A. If all organisms were the same, the entire population would be vulnerable to particular pathogens, like viruses.
B. All evolutionary adaptations (e.g. the origin of forelimbs) are the result of the gradual build up of genetic differences between organisms over geologic time.
C. Evolution (at the population level) refers to changes in the frequencies of genes in the population over time.
D. All of the above.
18. Which of the following is an example of genetic variation?
A. Two children have different eye colors.
B. One person is older than another.
C. One person has a scar, but her friend does not.
D. Tod eats meat, but his brother Rod is a vegetarian.
19. Which of the following is an example of environmental variation?
A. Apu is a tongue roller, but his brother Sanjay is not.
B. Marge dyes her hair blue.
C. Homer inherited baldness from his father's side of the family.
D. Patti and Selma have hanging ear lobes.
20. What's the difference between natural selection and sexual selection?
A. Sexual selection occurs during sex.
B. Natural selection is a type of sexual selection.
C. Sexual selection is a type of natural selection.
D. Sexual selection occurs within demes, natural selection does not.
21. What's the difference between genetic drift and change due to natural selection?
A. Genetic drift does not require the presence of variation.
B. Genetic drift does not involve competition between members of a species.
C. Genetic drift never occurs in nature, natural selection does.
D. There is no difference.
22. According to our reading, how did George Cuvier account for extinctions in nature?
A. Extinctions never occur--there are unexplored parts of the globe where organisms that appear to have gone extinct may still live.
B. Extinctions occur when the slow adaptation of organisms over time to their environment is not quick enough to help them respond to changing conditions.
C. Extinctions occur at random, they do not reflect God's will.
D. Extinctions are due to catastrophic events.
23. Why, according to our reading, did Darwin take so long to publish the Origin of Species?
A. Darwin wanted to share his theory as quickly as possible once he returned from his voyage on the Beagle.
B. It took twenty years for Darwin to develop a theory.
C. Darwin suffered from a number of illnesses.
D. Darwin was concerned about the reaction of others to the implications of his theory.
24. In which of the following ways is natural selection not analogous to artificial selection?
A. With natural selection "picking" is due to the fit of an organism with its environment; whereas in artificial selection, the breeder "picks" which organisms will breed.
B. Natural selection depends upon the presence of variation, artificial selection does not.
C. Natural selection occurs within populations, artificial selection does not.
D. There is a limit to how much change can be brought about by natural selection, no such limit exists for artificial selection.
25. Why is the advent of reproductive isolation important from an evolutionary standpoint?
A. When the organisms comprising two populations of a species can no longer interbreed, the flow of genetic material between them stops.
B. It is not important from an evolutionary standpoint. The question is based on a false assumption.
C. Reproductive isolation increases the mutation rate.
D. Reproductive isolation may slow reproduction.
26. If the theory of natural selection is the survival of the fitness, and the fittest are identified as those who survive, why isn't it regarded as a tautology (a statement that is true only because of the meaning of the terms) ?
A. The effect of traits on the fitness of an organism can be assessed independently of whether the organism indeed survives .
B. It is regarded as a tautology - the question is based on a false assumption.
C. There may be some statements in science that are useful even if they are not falsifiable or refutable in principle.
D. A and C.
27. The variation natural selection operates on is due to random mutations. What does this imply about natural selection?
A. Natural selection is also a random process.
B. Natural selection is nevertheless a directed process- the likelihood one variant will be favored in a given environment over another is predictable, even if the origin is not.
C. There is no possibility God could be involved in this process.
D. A, B and C.
28. How was Mendel's work ultimately reconciled with Darwin's theory of natural selection during the evolutionary synthesis in the 1930s and 1940s?
A. Scientists recognized that once one thinks about species as populations, rather than individuals,there is no incompatibility between them.
B. Mendel's theory was replaced by the mutation theory.
C. It was recognized much of the variation we observe in nature is due to recombination, rather than mutation.
D. A and C.
29. Which of the following is the evidence for Darwin's theory of common descent?
A. There are patterns in the fossil record that suggest other species have diverged from a single ancestor species.
B. There are biogeographic patterns in the distribution of species, for instance distinct bird species on an island tend to resemble one another, suggesting a common ancestor.
C. There are common stages in the early embryological development of organisms representing several distinct vertebrate groups.
D. All of above
30. What is the relationship between the wing of a bird and the wing of a bat?
A. They are homologous because they represent modified forms of a trait present in a common ancestor (forelimbs).
B. They are analogous because while each carries out the same function (flight), this trait has arisen independently as a result of convergence (i.e. the common ancestor of both did not have a forelimb that allowed it to fly).
C. A and B.
D. They represent derived homologies.
31. Which of the following is not an example of a macro evolutionary process?
A. One lion species splits to form two lion species over geological time.
B. The same trait evolves independently in two different taxa (e.g. wings in birds and in insects).
C. As a result of their activities, humans drive Dodos (a bird species) extinct.
D. Over a short period of time, the frequency of a single gene declines from 10 to 8%.
32. Which of the following is an example of an ancestral homology?
A. Almost all modern reptiles, birds and mammals have forelimbs, a trait they also share with contemporary amphibians.
B. The first birds and all their descendant species have feathers, a trait that is unknown in any other group.
C. Humans and many insect species have eyes.
D. All of the above.
E. None of the above.
33. Which of the following is not an example of micro evolutionary change?
A. The dark form of many moth species has increased in areas darkened by pollution.
B. Penicillin resistant forms of bacteria have arisen since the introduction of antibiotics.
C. The proportion of left and right bending moths in cichlid fish remains roughly 50:50.
D. The last American eagle dies off, leading to the extinction of the species.
34. Which of the following are difficult to explain in terms of natural selection?
A. Male peacocks evolve tail feathers that would appear to make them more rather than less vulnerable to predators.
B. Male deer evolve antlers that are not used to defend themselves against predators.
C. A bird issues a warning cry that puts it at greater risk of being noticed by a predator.
D. Some traits appear to have no adaptive value.
35. Which of the following is not an example of a monophyletic taxon?
A. The first fish species and every living organism that looks like a fish .
B. The first mammal species and all its descendants.
C. The first bird species and all its descendants.
D. All of the above.
36. Which of the following are kingdoms?
A. Monera .
B. Protista.
C. Animalae.
D. All of the above.
37. Which of the following must increase over geological time according to evolutionary biologists?
A. Size .
B. Complexity .
C. Speed of evolutionary processes such as mutation.
D. All of the above.
38. Why is similarity misleading when it comes to inferring evolutionary relationships?
A. Organisms that look alike may be very distantly related to one another.
B. Similarities between two species may be due to common descent, without indicating how closely the two are related to one another.
C. A and B only.
D. The presence of a shared derived character state is often misleading when it comes to inferring relationships between species .
39. Which of the following are the most distantly related to one another?
A. Sunfish and dolphins.
B. Tree frogs and snakes.
C. Vampire bats and birds.
D. Bears and whales.
40. How does an evolutionary biologist explain why a species of birds has evolved a larger beak size?
A. Large beak size occurred as a result of mutation in each member of the population.
B. The ancestors of this bird species encountered a tree with larger than average sized seeds. They needed to develop larger beaks in order to eat the larger seeds, and over time, they adapted to meet this need.
C. Some members of the ancestral population had larger beaks than others. If larger beak size was advantageous, they would be more likely to survive and reproduce. As such, large beaked birds increased in frequency relative to small beaked birds.
D. The ancestors of this bird species encountered a tree with larger than average sized seeds. They discovered that by stretching their beaks, the beaks would get longer, and this increase was passed on to their offspring. Over time, the bird beaks became larger.
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MCQs for Evolution Biology Full Syllabus
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