Match the hominids with their correct brain size. a) Homo habilis (i) $$900$$ cc b) Homo neanderthalensis (ii) $$1350$$ cc c) Homo erectus (iii) $$650-800$$ cc d) Homo sapiens (iv) $$1400$$ cc Select the correct option.

a)-(iii), b)-(i), c)-(iv), d)-(ii)

a)-(iii), b)-(ii), c)-(i), d)-(iv)

a)-(iv), b)-(iii), c)-(i), d)-(ii)

Origin of life from non-living substances

Origin of life from living organisms

Protobionts having polysaccharide + protein + $$H_2O$$

MCQ Questions for Class 12 Medical Biology Evolution Quiz 1

Match the hominids with their correct brain size.

a) Homo habilis	(i) $900$ cc
b) Homo neanderthalensis	(ii) $1350$ cc
c) Homo erectus	(iii) $650-800$ cc
d) Homo sapiens	(iv) $1400$ cc

Select the correct option.

0%
a)-(iii), b)-(i), c)-(iv), d)-(ii)
0%
a)-(iii), b)-(ii), c)-(i), d)-(iv)
0%
a)-(iii), b)-(iv), c)-(i), d)-(ii)
0%
a)-(iv), b)-(iii), c)-(i), d)-(ii)

Explanation

The correct match of hominids and their brain sizes are:
Homo habilis - $650-800$ cc
Homo neanderthalensis - $1400$ cc
Homo erectus - $900$ cc
Homo sapiens - $1350$ cc.

So, the correct answer is 'a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)'

The process by which organism with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called

0%
Natural selection.
0%
Convergent evolution.
0%
Non-random evolution.
0%
Adaptive radiation.

The chronological order of human evolution from early to the recent is

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Ramapithecus $\rightarrow$ Homo habilis $\rightarrow$ Australopithceus $\rightarrow$ Homo erectus
0%
Australopithecus $\rightarrow$ Homo habilis $\rightarrow$ Ramapithecus $\rightarrow$ Homo erectus
0%
Australopithecus $\rightarrow$ Ramapithecus $\rightarrow$ Homo habilis $\rightarrow$ Homo erectus
0%
Ramapithecus $\rightarrow$ Australopithceus $\rightarrow$ Homo habilis $\rightarrow$ Homo erectus

The tendency of population to remain in genetic equilibrium may be disturbed by _________.

0%
Random mating
0%
Lack of migration
0%
Lack of mutations
0%
Lack of random mating

The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of

0%
Homologous organs that have evolved due to convergent evolution.
0%
Homologous organs that have evolved due to divergent evolution.
0%
Analogous organs that have evolved due to convergent evolution.
0%
Analogous organs that have evolved due to divergent evolution.

Homo sapiens implies

0%
Human race
0%
Human beings
0%
Modern man
0%
None of the above

Explanation

Homo sapiens sapiens implies modern man. Modern humans have a cranial capacity of 1450-1600cm

$^3$ . It has been evolved in the world 25000-1000 years ago. It is further divided into Negroid, Caucasian, Eastern and Mongoloid.

0%
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
0%
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
0%
Assertion is correct but Reason is incorrect.
0%
Both Assertion and Reason are incorrect.

Explanation

The fossil of Java Ape-man was discovered from Pleistocene rocks in central Java. The fossil of Peking man was discovered from the limestone caves of Choukoutien near Peking while that of Heidelberg man was discovered in mid Pleistocene. All these three fossils come under the category of Homo erectus. Homo erectus appeared about

$1.7$ million years ago in middle Pleistocene. H. erectus evolved from Homo habilis. He was about

$1.5-1.8$ metres tall. He had erect posture. His skull was flatter than that of modern man. He had protruding jaws, projecting brow ridges, small canines and large molar teeth. He made more elaborate tools of stones and bones, hunted big game and perhaps knew use of fire.

Which of the following was the transitional stage (connective link) between apes and humans?

0%
Homo habilis
0%
Homo erectus
0%
Australopithecus ramidus
0%
Australopithecus africanus

Wings of pigeon, mosquito and bat shows

0%
Atavism
0%
Mutation
0%
Divergent evolution
0%
Convergent evolution

Tendrils in plants are an example of

0%
Convergent evolution
0%
Radiation
0%
Divergent evolution
0%
Coevolution

The cranial capacity was largest among the

0%
Peking man
0%
African man
0%
Java ape man
0%
Neanderthal man

Explanation

Neanderthals were a species of human in the genus Homo, which became extinct around 40,000 years ago. They were closely related to modern humans having DNA over 99.5% the same. Remains left by Neanderthals include bone and stone tools, which are found in Eurasia, from Western Europe and Central and Northern Asia and the Middle East. With an average cranial capacity of 1600 cm

$^3$ , the cranial capacity of Neanderthals is notably larger than the 1400 cm

$^3$ average for modern humans, indicating that their brain size was largest.

Therefore, the correct answer is option D.

There is no life on moon because there is no

0%
Carbon
0%
Nitrogen
0%
Water
0%
Silicates

The chance of elimination of genes from a small population is an example of

0%
Selection pressure
0%
Speciation
0%
Adaptation
0%
Genetic drift

The process of evolution in which species inhabiting the same area with different evolutionary lineage resemble each other is known as

0%
Adaptive radiation
0%
Convergent evolution
0%
Sympatric speciation
0%
Allopatric speciation
0%
Punctuated equilibrium

The earliest type of organisms appeared in the ocean were

0%
Autotrophs
0%
Heterotrophs
0%
Chemoheterotroph
0%
Photoautotrophs

Coenozoic era is known as

0%
Age of Amphibia and Lycopods
0%
Age of Marine Invertebrate
0%
Age of Reptiles and gymnosperms
0%
Age of Mammals and Modern flora

Which of the following concept explains about the constant occurrence of allele frequencies generation after generation in a small population not influenced by evolution?

0%
Mendel's principle of segregation
0%
Mendel's principle of independent assortment
0%
Darwin's theory of natural selection
0%
Darwin's theory of survival of the fittest
0%
The principle of Hardy-Weinberg equilibrium

The earliest and most primitive anthropoid ape during Oligocene is called

0%
Parapithecus
0%
Prophopithecus
0%
Proconsul
0%
Limnopithecus

First cell produced on earth is

0%
Protobiont
0%
Protozoa
0%
Metazoa
0%
None of the above

The dinosaurs were maximum during the period of

0%
Jurassic
0%
Triassic
0%
Cretaceous
0%
Palaeocene

The gene frequency of a population changes ____.

0%
In one particular environment
0%
When the population decreases
0%
When the population live in different conditions
0%
When population reproduces asexually

If the Neanderthals are not the direct ancestors of humans, is it still possible for humans and Neanderthals to be related?

0%
Yes, because we share a common ancestor
0%
Yes, but only if humans and Neanderthals could have interbred
0%
No, because the human evolutionary tree is strictly linear and without branches
0%
No, because this means that Neanderthals evolved from an entirely different branch of organisms than humans did

Which one among the following is an example for homology?

0%
Eye of octopus and mammals
0%
Tuber of sweet potato and potato
0%
Flippers of penguins and dolphins
0%
Thorns and tendrils of Bougainvillea and Cucurbita

If the frequency of an autosomal dominant allele is 0.Calculate the frequency of recessive phenotype in a population of 6000:-

0%
1200
0%
4000
0%
960
0%
1000

Explanation

Explanation -

p = 0.6
q = 1 - 0.6 = 0.4

$q^2 = 0.16$
then in 6000 individuals

$\dfrac{16}{100}\times 6000 = 960$

The jurassic period belongs to the era

0%
Coenozoic
0%
Paleozoic
0%
Mesozoic
0%
Protozoic

During origin of life, nucleoprotein gave most probably the first sign of

0%
Life
0%
Amino Acids
0%
Soil
0%
Sugar

Under certain conditions scientists have obtained cell-like structures. These are known as

0%
Microbes
0%
Protists
0%
Coacervates
0%
Prebiotic soup

Life originated in

0%
Precambrian era
0%
Proterozoic era
0%
Mesozoic era
0%
Cenozoic era

_________ is an example for adaptive radiation.

0%
Darwins finches
0%
Australian marsupial
0%
Both (a) and (b)
0%
Kangaroo

Abiogenesis means

0%
Origin of life from non-living substances
0%
Origin of life from living organisms
0%
Origin of Viruses and microbes
0%
None of the above

Coacervates are

0%
Protobionts having polysaccharide + protein + $H_2O$
0%
Protein Aggregate
0%
Protein and lipid aggregates
0%
None of the above

Theory of catastrophism was supported by

0%
Louis Pasteur
0%
A.I. Oparin
0%
Cuvier
0%
Haldane

Coacervates were experimentally produced by

0%
Urey and Miller
0%
Jacob and Monod
0%
Fischer and Huxley
0%
Sidney Fox and Oparin

Theory of special creation was given by

0%
Weisman
0%
Helmon
0%
Manpertuis
0%
Father Saurez

Hardy-Weinberg equilibrium is known to be affected by gene flow, genetic drift, mutation, genetic recombination and

0%
Evolution
0%
Limiting factors
0%
Saltation
0%
Natural selection
0%
Over production

The theory of evolution indicates that

0%
Man evolved from monkeys
0%
Monkey evolved from man
0%
Man evolved from dinosaur
0%
Man and apes had common ancestors

Indicate the completely correct statement about human races

0%
All human races can interbreed but most will produce infertile young ones
0%
Different human races cannot interbreed
0%
Some human races can interbreed
0%
All human races can interbreed and produce fertile

offspring

In which period, birds in geological development of earth arose?

0%
Permian
0%
Carboniferous
0%
Jurassic
0%
Oligocene and eocene

"In different races, there may be difference in culture and ways of

living but capacity in all is the same". It was the opinion of ___________.

0%
Darwin
0%
Wallace
0%
Lamarck
0%
Shapiro

Most primitive living mammals which provide an evidence of organic evolution

from geographical distribution are found in

0%
China
0%
India
0%
Australia
0%
Africa

In which era mammals and birds evolved?

0%
Mesozoic
0%
Cenozoic
0%
Palaeozoic
0%
Precambrian

The idea that life originates from preexisting life is referred as

0%
Biogenesis theory
0%
Special creation theory
0%
Abiogenesis theory
0%
Extraterrestrial theory

Big bang theory was proposed by

0%
Kant
0%
Lemaitre
0%
K. Bahadur
0%
Weismann

There was no life in

0%
Azoic era
0%
Mesozoic era
0%
Palaeozoic era
0%
Cenozoic era

The existence of marsupials in Australia and New Zealand prove

0%
Genetic drift
0%
Geological period
0%
Continental drift
0%
Both B and C

Which era is dubbed as the age of prokaryotic microbes?

0%
Phanerozoic
0%
Proterozoic
0%
Precambrian
0%
Archean

Mutations which normally happen randomly are considered one of the raw materials for evolution because they

0%
Are stable
0%
Contribute to new variation in organism
0%
Cause death of organism
0%
None of the above

The cenozoic era is known as

0%
Age of mammals and modern flora
0%
Age of reptiles and gymnosperms
0%
Age of amphibia and lycopods
0%
Age of marine invertebrates

Evolutionary convergence is characterized by

0%
Development of characteristics by random mating
0%
Replacement of common characteristics in different group
0%
Development of dissimilar characteristics in closely related groups
0%
Development of a common set of characteristics in group of different ancestry

Development of unrelated groups of animals along parallel lines in adaptation to a similar environment is called

0%
Adaptive convergence
0%
Adaptive radiation
0%
Adaptive divergence
0%
Adaptive induction

CBSE Questions for Class 12 Medical Biology Evolution Quiz 1 - MCQExams.com

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Practice Class 12 Medical Biology Quiz Questions and Answers

CBSE Questions for Class 12 Medical Biology Evolution Quiz 1 - MCQExams.com

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Practice Class 12 Medical Biology Quiz Questions and Answers

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