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NEET • BIOLOGY • EVOLUTION
Evolution practice · Mixed difficulty
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Showing 241-270 of 348 questions
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241
Easy
241 of 348
Understanding
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Creation of new taxa is focussed in
View answer and explanation
Correct option: A
Macro-evolution
Option A (Macro-evolution) is correct because macro-evolution focuses on the formation of new taxonomic groups above the species level.
242
Hard
242 of 348
Understanding
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[A]: The earliest living organisms were structurally simple.
[R]: The earliest living organisms were more complex than present one.
[R]: The earliest living organisms were more complex than present one.
View answer and explanation
Correct option: C
A is true but R is false
Option C (A is true but R is false) is correct because the earliest living organisms were structurally simple, and they were simpler, not more complex, than present-day organisms.
243
Medium
243 of 348
Understanding
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Darwin natural selection theory’ could not explain
View answer and explanation
Correct option: A
Retention of characters of no use or vestigial organ
Option A (Retention of characters of no use or vestigial organ) is correct because Darwin's theory primarily explains adaptation and survival, not the persistence of non-functional traits.
244
Medium
244 of 348
Analyzing
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Which of the following features of Archaeopteryx may not be considered as reptilian characters?
View answer and explanation
Correct option: C
Presence of weak sternum
Option C (Presence of weak sternum) is correct because a weak sternum is a characteristic of birds, not reptiles, and Archaeopteryx is considered a transitional fossil between reptiles and birds.
245
Easy
245 of 348
Remembering
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Which of the following branch of biology helps in to know the existence of coal?
View answer and explanation
Correct option: A
Palaeobotany
Option A (Palaeobotany) is correct because palaeobotany, the study of fossil plants, is the branch of biology that helps in understanding the origin and existence of coal, which is formed from ancient plant matter.
246
Easy
246 of 348
Understanding
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A population containing a gene ‘X’ with two alleles ‘Aa’ is in Hardy-Weinberg equilibrium for gene ‘X’. If the gene frequency of allele ‘A’ is 0.2, allele frequency of ‘a’ is
View answer and explanation
Correct option: C
0.8
Option C (0.8) is correct because in Hardy-Weinberg equilibrium, p + q = 1, where p is the frequency of allele A and q is the frequency of allele a. If p = 0.2, then q = 1 - 0.2 = 0.8.
247
Medium
247 of 348
Remembering
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Which of the following statements is correct?
View answer and explanation
Correct option: D
Cromagnon man is the most recent ancestor of Homo sapiens
Option D (Cromagnon man is the most recent ancestor of Homo sapiens) is correct because Cro-magnons are considered early modern humans.
248
Easy
248 of 348
Remembering
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The present concept of evolution is known as
View answer and explanation
Correct option: D
All of the above
Option D is correct because the present concept of evolution incorporates Neo-Darwinism, the Synthetic theory, and is considered the Modern concept of evolution.
249
Easy
249 of 348
Understanding
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Which of the following experiment suggested that simplest living organisms could not have originated spontaneously from non-living matter?
View answer and explanation
Correct option: D
Meat was not spoiled, when heated and kept sealed in a vessel
Option D (Meat was not spoiled, when heated and kept sealed in a vessel) is correct because it supports the idea that life does not spontaneously generate from non-living matter if precautions are taken to prevent contamination.
250
Hard
250 of 348
Remembering
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Formation of which complex molecules was noticed by Urey and miller when they subjected substances to electric discharge :
View answer and explanation
Correct option: D
Amino acids
Option D (Amino acids) is correct because the Miller-Urey experiment resulted in the formation of amino acids, which are building blocks of proteins.
251
Medium
251 of 348
Understanding
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Gradual accumulation of adaptation of changing environment leads to the origin of
View answer and explanation
Correct option: A
New species
Option A (New species) is correct because the accumulation of adaptations to a changing environment leads to the formation of new species through the process of evolution.
252
Easy
252 of 348
Remembering
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Lung fishes, air breathing animals and corals predominated during the ….. period Complete the given statement by choosing an appropriate option
View answer and explanation
Correct option: C
Devonian
Option C (Devonian) is correct because lung fishes, air-breathing animals, and corals predominated during the Devonian period.
253
Medium
253 of 348
Remembering
+4 | -1
Hardy-Weinberg described the frequency of …A… for an entire …B… . Choose the correct option for A and B to complete the given NCERT statement
View answer and explanation
Correct option: D
A-alleles; B-population
Option D (A-alleles; B-population) is correct because the Hardy-Weinberg principle describes the frequency of alleles in a population.
254
Hard
254 of 348
Understanding
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[A]: Homology is the similarity between organs of same animal based on common ancestory.
[R]: Analogy is seen in every organ system from fish to man.
[R]: Analogy is seen in every organ system from fish to man.
View answer and explanation
Correct option: D
Both A and R are false
Option D is correct because both the assertion and the reason are false. Analogy, not homology, is based on different ancestry, and analogy is not seen in every organ system from fish to man.
255
Hard
255 of 348
Remembering
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During origin of life and evolution of organisms, aerobes evolved
View answer and explanation
Correct option: B
After photoautotrophs
Option B (After photoautotrophs) is correct because photoautotrophs produced oxygen as a byproduct of photosynthesis, which allowed for the evolution of aerobic organisms.
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256
Hard
256 of 348
Analyzing
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In a population of 5000 individulas, 800 are aa type. What will be the number of Aa type individulas
View answer and explanation
Correct option: B
Three times of aa type of individuals
Option B (Three times of aa type of individuals) is correct because the number of Aa individuals is calculated based on Hardy-Weinberg equilibrium principles, and given the information, it results in being three times the number of aa individuals.
257
Hard
257 of 348
Understanding
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Which of the following is not a connotation of theory of special creation?
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Correct option: D
Life is end result of chemical evolution
Option D (Life is end result of chemical evolution) is the correct answer because the theory of special creation posits that life was created by a supernatural being, not through chemical evolution.
258
Hard
258 of 348
Understanding
+4 | -1
Read the following statements.
Statement-A : Triceratops was a three horned, quadruped dinosaur.
Statement-B : Brachiosaurus had plates on its back and was a flesh eating biped dinosaur.
Choose the correct option.
Statement-A : Triceratops was a three horned, quadruped dinosaur.
Statement-B : Brachiosaurus had plates on its back and was a flesh eating biped dinosaur.
Choose the correct option.
View answer and explanation
Correct option: C
Statement A is correct but statement B is incorrect
Option C is correct because statement A accurately describes Triceratops, while statement B incorrectly describes Brachiosaurus.
259
Medium
259 of 348
Analyzing
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Which of the following statements are wrong? I. Thomas Malthus is well known for his book on population,, II. The work of Thomas Malthus on population did not influence Darwin, III. There must be a genetic basic for getting selected and to evolve, IV. All the finches on the Galapagos islands are descended from a common ancestor. Choose the correct option
View answer and explanation
Correct option: B
Only II
Option B (Only II) is correct because Thomas Malthus's work on population *did* influence Darwin.
260
Medium
260 of 348
Remembering
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Embryological support for evolution was proposed by
View answer and explanation
Correct option: A
Ernst Haeckel
Option A (Ernst Haeckel) is correct because Ernst Haeckel proposed the theory of recapitulation, which suggested that ontogeny (development) recapitulates phylogeny (evolutionary history).
261
Medium
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Remembering
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Evolutionary biology is
View answer and explanation
Correct option: A
The study of history of life forms on earth
Option A (The study of history of life forms on earth) is correct because evolutionary biology focuses on understanding the processes and patterns of change in life forms over time, essentially tracing their history on Earth.
262
Hard
262 of 348
Remembering
+4 | -1
Golden ages of reptiles and fishes are respectively
View answer and explanation
Correct option: A
Mesozoic and Devonian
Option A (Mesozoic and Devonian) is correct because the Mesozoic era is known as the age of reptiles, and the Devonian period is known as the age of fishes.
263
Medium
263 of 348
Remembering
+4 | -1
An evolutionary process, giving rise to new species adapting to new habitat and ways of life is called
View answer and explanation
Correct option: A
Adaptive radiation
Option A (Adaptive radiation) is correct because adaptive radiation describes the evolutionary process where new species arise, adapting to new habitats and ways of life from a common ancestor.
264
Easy
264 of 348
Remembering
+4 | -1
‘Darwin’s finches’ refers to
View answer and explanation
Correct option: B
A type of birds present on Galapagos islands
Option B is correct because Darwin's finches are a group of bird species found on the Galapagos Islands that exhibit adaptive radiation.
265
Easy
265 of 348
Understanding
+4 | -1
The modern man differs from the apes in
View answer and explanation
Correct option: D
Arms shorter than legs
Option D (Arms shorter than legs) is correct because this is a key anatomical difference between modern humans and apes.
266
Hard
266 of 348
Remembering
+4 | -1
Which one of the following is the correct match:
View answer and explanation
Correct option: C
Lemur - True Placenta
Option C (Lemur - True Placenta) is correct because Lemurs are placental mammals and possess a true placenta for nourishing their developing offspring.
267
Medium
267 of 348
Remembering
+4 | -1
Synthetic theory of evolution was developed by
View answer and explanation
Correct option: A
Several biological specialities
Option A (Several biological specialities) is correct because the synthetic theory of evolution integrates various fields of biology, including genetics, paleontology, and ecology, to provide a comprehensive understanding of evolutionary processes.
268
Easy
268 of 348
Remembering
+4 | -1
The first life on earth consists of
View answer and explanation
Correct option: B
Protovirus
Option B (Protovirus) is correct because the protovirus theory suggests that the first life forms were similar to viruses, consisting of nucleic acids and proteins but lacking cellular structures.
269
Easy
269 of 348
Understanding
+4 | -1
Evolution for Darwin was gradual, while de Vries believed that mutations, caused speciation. The belief of de Vries supports the concept of
View answer and explanation
Correct option: A
Saltation
Option A (Saltation) is correct because saltation refers to sudden, large-scale mutations leading to speciation, which aligns with de Vries' belief.
270
Medium
270 of 348
Remembering
+4 | -1
Giant dinosaurs and reptiles predominated during the Jurassic period. This period was also marked the evolution of higher insects and angiosperms, conifers, cycads, etc. Jurassic period belongs to …….. era
Complete the given statement by choosing an appropriate option
Complete the given statement by choosing an appropriate option
View answer and explanation
Correct option: C
Mesozoic
Option C (Mesozoic) is correct because the Jurassic period, known for giant dinosaurs and reptiles, belongs to the Mesozoic era.
Revision notes and key takeaways
Review EVOLUTION in your textbook or class notes, then use this set to check your understanding.
Showing 241-270 of 348 questions