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NEET • BIOLOGY • EVOLUTION

Evolution practice · Medium

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1 of 144

Remembering +4 | -1

The brain capacities of Homo habilis were

View answer and explanation

Correct option: B

650-800cc

Option B (650-800cc) is correct because this is the known brain capacity range for Homo habilis.

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Analyzing +4 | -1

Assertion (A): In mammals the forelimbs perform different functions.

Reason (R): The forelimbs in different mammals consist of different sets of bones.

View answer and explanation

Correct option: C

If (A) is true but (R) is false

Option C is correct because while forelimbs in mammals perform different functions, they consist of the same basic set of bones, modified for different purposes.

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Remembering +4 | -1

‘XX’ lived 100000-40000 years ago, in Europe, Asia and Africa. ‘XX’ was short stature, hairy eyebrows, sctreating forehead and large jaws. Identify ‘XX’

View answer and explanation

Correct option: A

Neanderthal man

Option A (Neanderthal man) is correct because the description matches the known characteristics of Neanderthals.

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Remembering +4 | -1

Hugo de Vries’s experimental organism was

View answer and explanation

Correct option: D

Evening primrose

Option D is correct because Hugo de Vries conducted his mutation experiments using the evening primrose (Oenothera lamarckiana).

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Analyzing +4 | -1

Read the following statements and find out incorrect statements:

A) Alfred Wallace worked in Malay Archipelago

B) Anteater and numbat show convergent evolution

C) Branching descent and natural selection are key concepts of lamarck's theory of evolution

D) Marsupial mole and Marsupial mouse consider as examples of placental mammals

View answer and explanation

Correct option: A

C and D

Option A (C and D) is correct because branching descent and natural selection are key concepts of Darwin's theory, not Lamarck's, and marsupial moles and mice are not considered placental mammals.

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Analyzing +4 | -1

Lemur is placental mammal. If it exhibits convergent evolution with an australian marsupial, it should be :

View answer and explanation

Correct option: B

Spotted cuscus

Option B is correct because the spotted cuscus is the Australian marsupial that exhibits convergent evolution with the placental mammal lemur.

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Remembering +4 | -1

Select the wrong pair

View answer and explanation

Correct option: B

Spallanzani – Approve abiogenesis

Option B (Spallanzani – Approve abiogenesis) is the wrong pair because Spallanzani disproved abiogenesis.

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Understanding +4 | -1

The process by which different type of finches were evolved in Galapagos islands is

View answer and explanation

Correct option: A

Adaptive radiation

Option A (Adaptive radiation) is correct because Darwin's finches are a classic example of a species diversifying to fill different ecological niches.

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Remembering +4 | -1

Choose the correct statements
I. Law of embryonic development was given by Von Baer
II. Recapitulation theory was proposed by Haeckel
III. Haeckel theory states that ‘Ontogeny repeats phylogeny’
IV. Haeckel theory and biogenetic law were proposed by the same person
The correct combination is

View answer and explanation

Correct option: D

I, II, III and IV

Option D (I, II, III and IV) is correct because all the statements are accurate: Von Baer proposed the law of embryonic development, Haeckel proposed the recapitulation theory, Haeckel's theory states 'Ontogeny repeats phylogeny', and Haeckel proposed both the theory and the biogenetic law.

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Remembering +4 | -1

Which type of growth living organism undergoes?

View answer and explanation

Correct option: D

Intussusception

Option D is correct because living organisms grow through intussusception, which is internal growth by adding new material within.

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Analyzing +4 | -1

Read the following statements and find out incorrect statements:
A) Organs which have different origin but have similar function are analogous organs.
B) Wings of butterflies and birds represents analogous organs.
C) Vertebrates hearts and vertebrates brains represents analogous organs.
D) Analogous organs are based on emoryology and physiology.

View answer and explanation

Correct option: D

C and D

Option D is correct because vertebrate hearts and brains are homologous, not analogous, and analogous organs are based on evolutionary adaptation, not embryology and physiology.

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Remembering +4 | -1

Hardy –Weinberg principle explains

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Correct option: A

Genetic equilibrium

Option A (Genetic equilibrium) is correct because the Hardy-Weinberg principle explains the conditions for genetic equilibrium in a population.

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Understanding +4 | -1

Select the examples which favours the mutational theory of evolution
I. Ancon sheep II. Hornless cattle
III. Cicer gigas IV. Novel oranges
V. Hairless cat VI. Double toed cat
The correct combination is

View answer and explanation

Correct option: D

I, II, III, IV, V and VI

Option D (I, II, III, IV, V and VI) is correct because all listed examples represent instances where mutations have led to distinct phenotypic changes, supporting the mutational theory of evolution.

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Remembering +4 | -1

A change in the relative abundance of an allele (the allelic frquency) within a population, over a succession of generations is called

View answer and explanation

Correct option: A

Micro-evolution

Option A is correct because microevolution refers to small-scale changes in allele frequencies within a population over generations.

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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.

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Understanding +4 | -1

Proteins found in the blood of man and ape are similar. This is an example of

View answer and explanation

Correct option: B

Molecular homology

Option B (Molecular homology) is correct because the similarity of proteins in the blood of man and ape indicates a shared evolutionary ancestry at the molecular level.

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Understanding +4 | -1

Darwin judged the fitness of an individual by

View answer and explanation

Correct option: D

Dominance over other individuals

Option D is correct because Darwinian fitness is often judged by the ability of an individual to dominate over others, securing resources and mates.

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Application +4 | -1

In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is

View answer and explanation

Correct option: C

0.6

Option C (

0.6

) is correct because the frequency of allele A is calculated by considering the number of A alleles in both AA and Aa genotypes, divided by the total number of alleles in the population.

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Understanding +4 | -1

Diversity of living organisms is due to

View answer and explanation

Correct option: C

Long term evolutionary changes

Option C (Long term evolutionary changes) is correct because diversity arises from the accumulation of small changes over extended periods.

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Understanding +4 | -1

What happened to

\mathrm{N}{\mathrm{H}_3}

present in the primary atmosphere during its conversion to the secondary atmosphere?

View answer and explanation

Correct option: A

It got oxidized to

{\mathrm{N}_2}

and water

Option A (It got oxidized to

{\mathrm{N}}_{{2}}

and water) is correct because ammonia in the early atmosphere was oxidized to nitrogen gas and water due to the presence of other reactive compounds and energy sources.

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Understanding +4 | -1

Which of the following statement is correct?

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Correct option: D

Power of adaptation in an individual to a variety of environments

Option D (Power of adaptation in an individual to a variety of environments) is correct because it is the most general and encompassing statement about adaptation.

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Understanding +4 | -1

Divergent evolution gives rise to

View answer and explanation

Correct option: A

Homologous organ

Option A (Homologous organ) is correct because divergent evolution leads to the development of homologous organs, which share a common ancestry but have different functions.

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Understanding +4 | -1

Why the genetic variation is important from an evolutionary standpoint

View answer and explanation

Correct option: D

All of the above

Option D (All of the above) is correct because all the listed reasons highlight the importance of genetic variation for evolution.

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Remembering +4 | -1

The classical example of adaptive radiation in development of new species is

View answer and explanation

Correct option: D

All of these

Option D (All of these) is correct because Darwin's finches, marsupials of Australia, and giant turtles are all classic examples of adaptive radiation, where species diversify to fill different ecological niches.

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Understanding +4 | -1

Fossil X is older than fossil Y if

View answer and explanation

Correct option: A

X was found deeper in sediment than Y

Option A (X was found deeper in sediment than Y) is correct because, in undisturbed sedimentary layers, older fossils are typically found in deeper strata.

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Analyzing +4 | -1

Assertion: Thorns and tendrils of Bougainvillea and cucurbita represent homology.
Reason: Homologous organs have similar functions but are different in their structural details and origin.

View answer and explanation

Correct option: C

If Assertion is true but Reason is false

Option C is correct because thorns and tendrils are homologous structures, but the reason incorrectly describes homologous organs.

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Understanding +4 | -1

Darwin asserted that …A… which are heritable and which makes the resources utilization …B… for few, will enable only those to reproduce and leave …C… progeny.  Choose the correct option for A, B and C to complete the given statement

View answer and explanation

Correct option: A

A-variations, B-better, C-more

Option A is correct because Darwin's theory of natural selection emphasizes heritable variations leading to better resource utilization and increased progeny.

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Remembering +4 | -1

In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by

View answer and explanation

Correct option: C

2pq

Option C (2pq) is correct because in the Hardy-Weinberg equation, 2pq represents the frequency of heterozygous individuals.

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Analyzing +4 | -1

Which characteristic of living monkeys suggests that the earliest anthropoids were monkey-like?

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Correct option: D

Of all the anthropoids, monkeys have brains that are most similar in size (relative to body size) to those of prosimians

Option D is correct. Monkeys, among anthropoids, have brain sizes relative to their body size that are most similar to prosimians, suggesting a closer link to the earliest anthropoids.

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Understanding +4 | -1

Which is not true of Archaeopteryx?

View answer and explanation

Correct option: D

Connecting link between birds and amphibians

Option D (Connecting link between birds and amphibians) is correct because Archaeopteryx is a connecting link between reptiles and birds, not amphibians.

Revision notes and key takeaways

Review EVOLUTION in your textbook or class notes, then use this set to check your understanding.

Key Takeaways

✓ This set contains 144 single-correct-answer MCQs on EVOLUTION.
✓ Try each question before opening its answer. Read the explanation where one is available.
✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.

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