Biology Ch 10 Class 12 Evolution





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Which of the following concepts is attributed to Lamarck?

NUMS 2014
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Evolution
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Which of the following is not an evidence for evolution?

PMC Sample 3
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Flagella might have arisen through the ingestion of

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During aristotle time, it was thought that

PMC Sample 3
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Homology means

PMC Sample 3
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Genetic equilibrium is a:

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The organs which are similar in function but differ in structure are called:

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The following observations refer to evolution:

I. Inherited variations which are ‘favoured’ in particular environments are passed on.

II. There is a struggle for existence.

III. In time, ‘favoured’ inherited variations may accumulate causing gradual changes in the organism.

IV. Although populations tend to overproduce, they remain more or less constant in numbers from generation to generation.

In what sequence should the statements be placed to support Darwin’s theory of evolution?

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Who developed a theory of natural selection essentially identical to Darwin’s?

PMC Sample 2
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The ultimate source of all changes is:

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Prokaryotes are considered to be evolved

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The process that has transformed life on earth from its earliest forms to vast diversity is

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Which scientist does not match his achievements

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Which one is NOT a continuous trait?

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Neo-Darwinism has integrated discoveries and ideas from

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Choose the correct combination:

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Theory of Lamarck was based on:

NTS 2011
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The process that has transformed life on earth from its earliest forms to vast diversity is?

PMC Sample 3
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According to the Hardy-Weinberg theorem, what will be the frequency of heterozygote when ‘p’ is 0.2?

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The actual remains or traces of organisms that lived in ancident geological times

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Which animals support Darwin’s view of inheritance of desirable variations?

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Which of the following is a vestigial organ?

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On Galapagos island, among the birds, ____ caught much attention of Darwin in formulating his work, related to adaptations.

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At what point are two populations descending from the same ancestral stock considered separate species?

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Consider the following statements about biological communities.

I. Their members share a common gene pool

II. The community remains stable even though some physical aspect of the environment may undergo a change

III. It consists of all the populations living in a particular area.

IV. A community interacts with a non-living environment and both function together to form an ecosystem

Which two of the above statements are true?

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Change in frequency of alleles that occurs by chance Is called as:

UHS 2019
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Many scientists believe that one of the following is evolutionary origin(s) of animals, plants and fungi?

NTS 2013
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In the Hardy – Weinberg principle, p2 + 2pq + q2 = 1 . q2 represents the frequency of the:

NTS 2010
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Evolutionary relationships amongst species are reflected in their:

NUMS 2016
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The following observations refer to evolution:

Inherited variations which are favored in a particular environment are passed on
There is a struggle for existence
Across time, inherited variations may accumulate causing gradual changes in the organism
Although populations tend to overproduce, they remain more or less constant in numbers from generation to generation
In what sequence should the statement be placed to support the Darwin theory of evolution?

NTS 2015 DUHS and JSMU
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Mating with non-relatives is known as?

PMC Sample 2
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Consider the following statements about biological communities.

I. Their members share a common gene pool

II. The community remains stable even though some physical aspect of the environment may undergo a change

III. It consists of all the populations living in a particular area.

IV. A community interacts with a non-living environment and both function together to form an ecosystem

Which two of the above statements are true?

NTS 2014
Biology
Evolution
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32/71

In the Hardy – Weinberg principle,p2 + 2pq + q2= ?

NTS 2016 SMBBMC
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A group of interbreeding individuals belonging to a particular species and sharing a common geopraphic area is called

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Which factor decides what type of variation should be flourished and passed on to the next generations?

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Lamarck is best known for his theory of:

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The genetic change in a population caused by natural selection is called?

PMC Sample 1
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The wings of birds and the forelegs of a horse are _____ structures.

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______ occurs because natural selection gives some alleles a better chance of survival than others:

PMC 2020
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Which one of the following pairs represents an analogous feature?

NUMS 2018
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Analogous organs show:

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According to the theory of natural selection, organisms produce:

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Which statement is incorrect?

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Important point/s of Lamarck’s theory

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The total aggregate of genes in a population at any one time is called population’s

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Modification in the organization of the basic pentadactyl limb structure found in vertebrates provides good evidence for the principle of:

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Natural selection can amplify or diminish variations that are?

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Analogous organs show

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Which of the following scientists contributed a lot to “modern synthetic theory of organic evolution:

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Carolus Linnaeus was believer of which of the following?

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In humans gill pouches have modified into

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A group of populations that have the potential to interbreed in nature is

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Which of the following theories or evolution can best explain the vestigial organs.

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Who developed a theory of natural selection essentially identical to Darwin’s

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Which condition can be explained by Lamarckism?

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This theory says that “mitochondria and chloroplasts are, in effect, ancient bacteria which now live inside the larger cells”:

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Adaptations that an organism acquires by its own actions are

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If allele frequency for a dominant allele is 0.4. What will be the number of heterogeneous individuals if the population is of 100 individuals with diploid traits.

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Adaptation of traits to better fill a niche is known as which of the following?

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Archaebacteria can survive at

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Most fossils are found in the

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Natural selection can amplify or diminish variations that are

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Key point to Lamarck’s view about organic evolution is that every offspring

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There existed two varieties of female freshwater Mollusks in which some were streamlined and some had a high bulge. Over the generations, male freshwater Mollusks learned that high bulge favors more production of offspring. So they started preferring to mate with females having high bulge as compared to streamlined. Will this affect Hardy Weinberg Equilibrium in the population?

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Most of the fossils are found in which of the following?

PMC Sample 1
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Carolus Linnaeus was believer of

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Whose theory of natural selection is essentially identical to Darwin’s theory?

NUMS 2019 Cancelled
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What is in q2 Hardy Weinberg equilibrium?

NTS 2019
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A group of interbreeding individuals belonging to a particular species and sharing a common geopraphic area is called?

PMC Sample 1
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Inheritance of acquired characteristics is based on:

NTS 2016 DUHS & JSMU
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What was the source of hydrogen for first photosynthetic organisms?

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