Evolution · Biology · NEET

Forelimbs of cat, lizard used in walking, forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of:

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...

Which of the following had the smallest brain capacity ?

Which is the most common mechanism of genetic variation in the population of a sexually reproducing organism ?

A population will not exist in Hardy-Weinberg equilibrium if

Industrial melanism is an example of -

The wings of a bird and the wings of an insect are :

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Which evolutionary phenomenon is depicted by the sketch given in figure? ...

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What is the correct order (old to recent) of periods in Paleozoic era?

The flippers of the Penguins and Dolphins are the example of the

Given below are some stages of human evolution. Arrange them in correct sequence. (Past to Recent) A. Homo habilis B. Homo sapiens C. Homo neanderthal...

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Identify the fossil of man who showed the following characteristics. (A) Brain capacity of 1400 cc (B) Used hides to protect their body (C) Buri...

Select the correct group/set of Australian Marsupials exhibiting adaptive radiation.

Given below are two statements: Statement I: RNA mutates at a faster rate. Statement II: Viruses having RNA genome and shorter life span mutate and ev...

Give the correct descending order of organisms with reference to their estimated number found in Amazon forest. (a) Plants (b) Invertebrates (c) Fishe...

Select the correct statement regarding mutation theory of evolution.

Natural selection where more individuals acquire specific character value other than the mean character value, leads to

Which of the following statements is not true?

The factor that leads to Founder effect in a population is :

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Embryological support for evolution was disapproved by

From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask

Flippers of Penguins and Dolphins are examples of

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action...

The concept of ''Omnis cellula-e cellula'' regarding cell division was first proposed by :

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Variations caused by mutation, as proposed by Hugo de Vries, are :

In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the in...

Among the following sets of examples for divergent evolution, select the incorrect option.

The similarity of bone structure in the forelimbs of many vertebrates is an example of

According to Hugo de Vries, the mechanism of evolution is

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

Genetic drift operates in

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

Which of the following is the correct sequence of events in the origin of life ? I. Formation of protobionts II. Synthesis of organic monomers III. Sy...

Analogous structures are a result of :

Following are the two statements regarding the origin of life - (a) The earliest organisms that appeared on the earth were non-green and presumably an...

Which of the following structures is homologus to the wing of a bird ?

Dinosaurs dominated the World in which of the following geological era ?

Random undirectional change in allele frequencies that occur by chance in all populations and especially in small populations is known as :-

Genetic variation in a population arises due to :

The finch species of Galapagos Islands are grouped according to their food sources. Which of the following is not a finch food ?

According to Darwin, the organic evolution is due to -

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

Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as :

The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challen...

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

The idea of mutations was brought forth by :

The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore he...

What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors ?

Which one of the following options gives one correct example each of convergent evolution and divergent evolution ?

Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as

What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors ?

Given below are four statements (A-D) each with one or two blanks. Select the option which correctly fills up the blanks in two statements – Statemen...

The most apparent changes during the evolutionary history of Homo sapiens is traced in

Darwin's finches are a good example of –

In the case of peppered moth (Biston betularia) the black-coloured from became dominant over the light-coloured form in England during industrial revo...

Peripatus is a connecting link between :

Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin o...

Which one of the following scientist's name is correctly matched with the theory put fourth by him?

Thorn of Bougainvillea and tendril of Cucurbita are examples of:

Darwin's finches are a good example of –

The finches of Galapogas islands provide an evidence in favour of-

Adaptive radiation refers to:-

Which one of the following statements is correct?

The concept of chemical evolution is based on-

When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed:-

An important evidence in favour of organic evolution is the occurrence of-

Which one of the following amino-acids was not found to be synthesized in Miller's experiment ?

Jurassic period of the Mesozoic era characterized by-

Praying mantis is a good example of-

Which of the following is the relatively most accurate method for dating of fossils ?

At a particular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of heterozygotes in a random mating populati...

Which of the following is not true for a species ?

De Vries gave his mutation theory on organic evolution while working on -

Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from non-living matter ?

Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution ?

There are two opposing views about origin of modern man. According to one view Homo erectus in Asia were the ancestors of modern man. A study of varia...

Diversification in plant life appeared

Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More p...

What kind of evidence suggested that man is more closely related with chimpanzee than with other hominoid apes ?

Which one of the following is living fossil ?

According to oparin, which one of the following was not present in the primitive atmosphere of the earth ?

Which one of the following describes correctly the homologous structures ?

Which one of the following is categorised under living fossils ?

Industrial melanism is an example of : -

In a random mating population in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner : -

Darwin in his 'Natural Selection Theory' did not believe in any role of which one of the following in organic evolution ?

Random genetic drift in a population probably results from

Convergent evolution is illustrated by : -

Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?

Which of the following is important for speciation ?

Cause of mimicry is -

There is no life on moon due to the absence of -

Which of the following are homologous organs ?

Genetic drift oparates in : -

In which condition, the gene ratio remains constant for any species population ?

According to fossils which discovered up to present time, origin and evolution of man was started from

In which era reptiles were dominant ?

Sequence of which of the following is used to know the phylogeny ?

Which of the following is correct order of the evolutionary history of man ?

Which statement is correct about centre of origin of plant ?

Half life period of C14 is : -

Most abundant organic compound on earth is

Reason of diversity in living being : -

Which of the following is closest relative of man ?

Similarities in organism with different genotype indicates : -

First life on earth was : -

Forthcoming generations are less adaptive than their parental generation due to

Occurrence of endemic species in South America and Australia is due to

Darwins theory of pangenesis shows similarity with theory of inheritance of acquired characters then what shall be correct according to it

Which is not a vestigial organ in man ?

Which is the most important factor for continuity of a species from evolutionary point of view ?

Who is directly related to man ?

Character which is closely related to human evolution

Which evidence of evolution related to Darwin's finches ?

Homo sapiens have evolved in

Which one of the following are analogous structures?