Evolution — DPP 2

20 NEET questions from Evolution, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
Archaeopteryx is a connecting link between
  1. A Birds and reptiles
  2. B Reptiles and mammals
  3. C Annelids and arthropods
  4. D Amphibians and fishes
Show answer & explanation

Correct answer: A

Archaeo = Primitive, pteryx = wing.
It has characteristics of both reptiles and birds.
2
Branching descent is one of the key concepts of
  1. A Lamarckian theory
  2. B Miller's theory
  3. C The Big Bang theory
  4. D Darwinian theory
Show answer & explanation

Correct answer: D

Natural selection and branching descent are key concepts of Darwinian theory.
3
The last major evolutionary advancement among the vascular plants was the emergence of flowering plants (angiosperms) about
  1. A 350 million years ago
  2. B 140 million years ago
  3. C 16,00 million years ago
  4. D 220 million years ago
Show answer & explanation

Correct answer: B

In cretaceous period, angiosperms appeared.
4
Presence of NaCl in body fluid indicates that life originated in
  1. A Primitive ocean
  2. B Rain water lakes
  3. C Salt solution
  4. D All of these
Show answer & explanation

Correct answer: A

Oceans have large content of NaCl.
5
Which ones are the most essential for origin of life?
  1. A Enzymes
  2. B Proteins
  3. C Carbohydrates
  4. D Nucleic acids
Show answer & explanation

Correct answer: D

Nucleic acids constitute the genetic material (blue-print of the organisms genetic make-up)
6
Origin of life from nonliving matter is known as
  1. A Coacervates
  2. B Abiogenesis
  3. C Biogenesis
  4. D None of these
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Correct answer: B

Theory of spontaneous generation or abiogenesis states that life has originated from non living matter.
7
Amphibia first appeared in which of the following period?
  1. A Permian
  2. B Carboniferous
  3. C Devonian
  4. D Silurian
Show answer & explanation

Correct answer: C

First amphibians originated is devonian period and age of amphibians is carboniferous period.
8
During the origin and evolution of life, key biological compounds were progressively synthesised in ocean with the help of energy obtained from
  1. A Lightening
  2. B Ultraviolet light
  3. C Lightening as well as ultra-violet light
  4. D Combustion of certain compounds
Show answer & explanation

Correct answer: C

UV rays broke $\mathrm { H } _ { 2 } \mathrm { O }$ into $\mathrm { H } _ { 2 }$ and $\mathrm { O } _ { 2 }$.
9
The palaeontological evidences are obtained from
  1. A Homologous structures
  2. B Analogous structures
  3. C Fossils
  4. D Lichens
Show answer & explanation

Correct answer: C

Study of fossils is called palaeontology.
10
Which of the type of respiration probably arose first?
  1. A Aerobic as it releases more energy
  2. B Anaerobic as it releases more energy
  3. C Aerobic as it is more complex
  4. D Anaerobic as early atmosphere contained no free from of oxygen
Show answer & explanation

Correct answer: D

Primitive earth's atmosphere was reducing.
11
Which one of the following gas was not present in free form at the time life originated on earth?
  1. A Ammonia
  2. B Oxygen
  3. C Hydrogen
  4. D Methane
Show answer & explanation

Correct answer: B

Primitive earth was reducing type. It had no oxygen.
12
Who finally refuted the theory of spontaneous generation and experimentally disproved it?
  1. A Thomas Malthus
  2. B Alfred Wallace
  3. C Louis Pasteur
  4. D Charles Darwin
Show answer & explanation

Correct answer: C

Louis Pasteur disproved it by Swan neck experiment.
13
The atmosphere became oxidising with the appearance of earliest
  1. A Autotrophic bacteria
  2. B Autotrophic cyanobacteria
  3. C Land plants
  4. D Algae
Show answer & explanation

Correct answer: B

Autotrophic cyanobacteria used $\mathrm { H } _ { 2 } \mathrm { O }$ to get hydrogen and release oxygen. Thus atmosphere became oxidising.
14
The first non-cellular form of life could have originated about ________ years ago.
  1. A 3 million
  2. B 2 million
  3. C 3 billion
  4. D 2 billion
Show answer & explanation

Correct answer: C

They would have been giant molecules (RNA, DNA, Polysaccharides, etc.,)
15
Cretaceous period of the Mesozoic era is characterised by which of the following
  1. A Gymnosperms are dominant plants and first birds appear
  2. B Dinosaurs become extinct and angiosperms appear
  3. C Flowering plants disappear
  4. D Radiation of reptiles and origin of mammallike reptiles
Show answer & explanation

Correct answer: B

First birds appeared in Jurassic period.
16
First mammals appeared around
  1. A 459 million years back
  2. B 220 million years back
  3. C 1600 million years back
  4. D 3800 million years back
Show answer & explanation

Correct answer: B

Mammals first appeared in triassic period of mesozoic era.
17
Who was the proponent of the Theory of Inheritance of acquired characters?
  1. A A.I. Oparin
  2. B Hugo deVries
  3. C Lamarck
  4. D Weinberg
Show answer & explanation

Correct answer: C

He also said that the organs which are used frequently become more developed.
18
Hugo deVries studied mutations in
  1. A Eucalyptus
  2. B Evening primrose
  3. C Hibiscus
  4. D Vallisneria
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Correct answer: B

Hugo de Vries gave mutation theory. Evening primrose = Oenothera lamarckiana.
19
H.C. Urey wrote the following book
  1. A The Planets
  2. B Origin of Life
  3. C The Origin of species
  4. D None of these
Show answer & explanation

Correct answer: A

Origin of Species by Darwin
Origin of Life by Oparin
20
Which of the following arrangement of periods of the mesozoic era gives a correct sequence from the earliest to the latest?
  1. A Jurassic, Triassic, Cretaceous
  2. B Triassic, Jurassic, Cretaceous
  3. C Permian, Jurassic, Triassic
  4. D Devonian, Permian, Jurassic
Show answer & explanation

Correct answer: B

Evolution – NEET-10520

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