Heredity And Evolution Questions

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Heredity And Evolution Questions

List of heredity and evolution Questions

Question NoQuestionsClass
1In quantitative inheritance, ( F_{2} ) ratio
obtained in a dihybrid cross is
A .1: 4: 6: 4: 1
B. 15: 1
c. 12: 3:
D. 9 :7
2Which of the following characters are not acquired?
A. Body weight
B. Body colour
c. Height
D. Eye colour
3Describe in short the hereditary and acquired characters.10
4The diversity in the type of beaks of finches adapted to different feeding habits on the Galapagos Islands, as observed by Darwin, provides evidence for
A. Intraspecific competition
B. Interspecific competition
c. origin of species by natural selection
D. Origin of species by mutation
5Prosimian includes
A . Lemur
B. Tarsier
c. New World Monkey
D. Both A and B
6Successful adaptation simply means
( A cdot ) an increase in fitness
B. moving to a new place
C . producing offspring
D. evolving new characteristics
7Which book was written by Charles Darwin?
A. Origin of species
B. Species Plantarum
c. Genera Plantarum
D. De Naturien Familien
8The dihybrid ratio of 9: 3: 3: 1 proves the law of10
9The colour composition of beetle population is likely to change in the following manner.
A. Both red and green beetles survive equally
B. Only the red beetles survive.
C. More red beetles survive than the green.
D. More green beetles survive than the red
10Why it is said that evolution is a
progressive development of plants and animals.
11A pea plant with blue colour flower BB is cross-breed with a pea plant with white flower denoted by ww. What will be the percentage of plants
bearing white flower in ( F_{2} ) generation,
when the flowers of ( F_{1} ) plants were selfed?
12Who wrote the book “Origin of Species”?
A. G.J. Mende
B. Lamarck
c. Hugo de Vries
D. Charles Darwin
13Why acquired characters are not
A. Acquired characters do not produce change in the DNA of germ cells.
B. Acquired characters produce change in the DNA of germ cells.
C. Acquired characters do not produce change in the DNA of somatic cells.
D. All of the above.
14Who wrote the famous book ‘Origin of species’?
A . Lamarck
B. Darwin
c. De Vries
D. Mendel
15Choose the correct answers from the
alternatives given Which one of the following is homologous to the wing of a bat?
A. Tail of a kangaroo
B. Wing of a butterfly
c. Tail fin of a fish
D. Arm of a human
16The eye of octopus and eye of cat show
different patterns of structure, yet they perform similar function, This is an
example of :
A. Homologous organs that have evolved due to convergent evolution
B. Homologous organs that have evolved due to divergent evolution
C. Analogous organs that have evolved due to convergent evolution
D. Analogous organs that have evolved due to divergent evolution
17The earliest site where human
civilization and crop cultivation started
was presumably
A. Around Caspian and Mediterranean seas
B. Around river Nile
c. chinese river valley
D. All of the above
18In a certain species of animals, black fur
(B) is dominant over brown fur (b).
Show the possible ratio of genotypes and phenotypes of the offspring of the pure breeding different coloured parents.
19All of our cells contain protooncogenes that may turn into oncogenes, which are cancer genes. Which statement best describes the protooncogenes?
A. Came into our cells from a viral infection of our ancestors
B. Arose from plasmids that have been inserted into bacteria and now reside in us
C. Are DNA “junk” with no known function
D. Turn into oncogenes as we age
E. Help regulate cell division
20Who described role of natural selection
in speciation?
A. Orator F. Cook
B. Charles Robert Darwin
c. J.B.S Haldane
D. None of these
21Differentiate between inherited and
acquired traits.
22What is the correct sequence from least
complex to most complex in terms of the amount of information they carry?
. Chromosomes
II. Base pair
III. Codon
IV. Gene
( mathbf{A} cdot mid rightarrow|rightarrow| rightarrow rightarrow ) ।
B. ( |rightarrow| dashv rightarrow perp rightarrow ) ।
c. ( |! rightarrow| rightarrow 1 rightarrow ) ।V
D. II ( rightarrow | perp rightarrow I V rightarrow 1 )
E . ( |rightarrow mid V rightarrow| rightarrow ) ।
23What other children’s genotypes and
phenotypes there can be in the given family?
24Which of the following is not related to
the Darwin’s theory of Evolution
A. All living organisms of a group are not identical.
B. Variations may be passed from parent to off-spring
C. Evolution is a slow and continuous process.
D. Population do not grow in geometrical progression
25Rearrange the following based on the
relationship between different
primates. Chimpanzee – Gorilla – Gibbon –
26Darwin correlated variations observed
in nature to variations found in
A. Human society
B. Breeding domesticated animals
c. Breeding crop plants
D. caged animals
27Which one of the following pairs is
correctly matched?
A. Streamlined body – Aquatic adaptation
B. Excessive perspiration – Xeric adaptation
C. Parasitism – Intra specific relationship
D. Uricotelism – Aquatic habitat
28The book ‘Descent of Man and Selection
in Relation to Sex’ was written by
A. Charles Darwin
B. J B. Lamarck and C. Darwin
c. F.B. Sumner and E. Darwin
D. Robert Brown
29The traits which are acquired by an organism during its lifetime are called
A. Acquired traits
B. Inherited traits
c. skilled traits
D. None of the above
30Who wrote the book origin of species?10
31In Galapagos islands, Darwin observed variations in structure in
A. Elephants
B. Giraffes
c. Rats
D. Finch birds
32From the given traits, which are temporarily acquired traits?
A. Tattoos
B. Blisters
c. organ transplant
D. vaccinations
33Which one of the following sequences was proposed by Darwin and Wallace for organic evolution:
A. overproduction, variations, constancy of population size, natural selection
B. Variations, constancy of population size, overproduction, natural selection
c. overproduction, constancy of population size, variations, natural selection
D. Variations, natural selection, overproduction constancy of population size
34Modern evolutionary theory consists of the concepts of Darwin modified by knowledge concerning
A. Population statistics
B. Mendel’s law
c. The idea of the survival of the fittest
D. competition
35How many plant and animal types do exist on earth?10
36In Mirablilis jalapa, red flowered plant is crossed with white flowered plant. What
will the phenotypic ratio in ( boldsymbol{F}_{2} ) generation?
A. 1: 1: 1
B. 1: 2: 1
c. 3: 1
D. 1: 1
37Who gave the ‘Theory of pangenesis’?
A. Lamarck
B. wallace
c. Haeckel
D. Darwin
38Darwin was influenced by Malthus who in ( 1798, ) wrote that human population increases
Whereas their resources
A. at O percent rate, at O percent rate
B. exponentially, arithmetically
c. exponentially, geometrically
D. arithmetically, geometrically
39Whose bicentenary is the year ( 2009 ? )
A. Darwin
B. Edward Jenner
c. stanley Miller
D. T.H. Morgan
40The height of an individual depends on the genes inherited from the parents.
A. True
B. False
41According to Darwinism,
fossils of organisms found in south America resemble most
to the fossils of
A. North America
B. Africa
C. Australia
D. Both A and B
42Who came up with the idea of
A. Mendel
B. Morgan
c. charles Darwin
D. None of these
43In Galapagos islands, Darwin observed variations in structures in
A. Elephants
B. Giraffies
c. Rats
D. Finch birds
44What are Darwin’s finches?10
45Match column I with column II and
select the correct answer using the
codes given below.
Column I
Column II
A Father of genetics
B Dihybrid cross
Gregor Mendel
C Study of fossils
( (r) )
3: 1
D Nictitating membrane,
Analogous organs ear muscles and
vermiform appendix E Wings of insects, bat and bird
Vestigial organs
( A cdot A-(q) ; B-(r) ; C-(p) ; D-(t) ; E-(s) )
B. ( A-(r) ; B-(q) ; C-(p) ; D-(t) ; E-(s) )
c. ( A-(r) ; B-(q) ; C-(p) ; D-(s) ; E-(t) )
D. ( A-(r) ; B-(p) ; C-(q) ; D-(s) ; E-(t) )
46When a tall plant with round seeds (TTRR) crossed with a dwarf plant with
wrinkle seeds (ttrr), the ( F_{1} ) generation consists of tall plants with round seeds. What would be the proportion of dwarf
plant with wrinkle seeds in ( F_{1} )
( A cdot 1 / 4 )
B. 1/16
( c cdot 0 )
D. ( 1 / 2 )
47Darwinism explains all except:
A. Within each species there are variations.
B. Variations are inherited from parents to offspring through genes.
C. Organisms tend to produce more offspring than can survive.
D. Organisms with better traits that overcome competition are best suited under the environment.
48The main features of Darwin’s theory of evolution are
A. Struggle for existence
B. Natural selection
c. Survival of the fittest
D. All of the above
49A group of red beetles lives on green leaves of a tree. Beetles multiply
through sexual reproduction. One day,
some green beetles are seen among the red beetles. Green beetles breed to
produce green progeny. Crows on the
tree eat beetles. Some green beetles appear among the red beetle because
A. Beetles become green by accumulating chlorophyll from the green leaves that they eat
B. Natural variations occur during sexual reproduction
C. Red beetles mimic green colour of leaves whenever they see crows
D. Beetle change colour from red to green with change of season
50The ‘Descent of Man’ was published by
A. Charles Darwin in 1871
B. Charles Darwin in 1859
c. Hugo de Vries in 1901
D. Lamarck in 1809
51If Darwin’s theory of pangenesis shows similarity with theory of inheritance of acquired characters, then what shall be correct according to it?
A. Useful organs become strong and developed, while useless organs become extinct. These organs help in the struggle for survival
B. Size of organs increase with ageing
c. Development of organs is due to willpower
D. There should be some physical basis of inheritance
52Which of the following depicts Mendel’s dihybrid ratio?
( A cdot 3: )
B. 9: 3: 3: 1
c. 9: 7
D. 15:
53Which of the following trait is controlled by dominant autosomal genes?
A. Polydactyly
B. Huntingtons chorea
c. PTC (phenylthiocarbamide) tasting
D. All of the above
54The term Darwin’s finches was given to Galapagos finches by
A. Huxley
B. spencer
c. wallace
D. Lank
55Fitness according to Darwin refers
A. Number of species in a community
B. Useful variation in population
C. Strength of an individual
D. Reproductive fitness of an organism
Darwin’s finches of Galapagos islands have different types of modified beaks according to their food habits.
Adaptive radiation, leads to
development of different functional
structure from a common ancestral
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
57How do the characteristics of mother
and father get transmitted in a human
58The cluster of species formed on Galapagos islands are clear example of
all, except
A. Species formation arising by micro-evolutionary divergence from an ancestral form occupying different habitats, of microevolution leading to macro evolution
B. Founder’s effect
c. Adaptive radiation
D. Sympatric speciation
59Explain the acquired trait with examples.10
60When a cross is made between tall
plant with yellow seeds (TtYy) and tall plant with green seeds (Ttyy), what
proportions of phenotype in the offspring could be expected to be
(a) tall
and green (b) dwarf and green
Parents ( begin{array}{ccc}text { Tall Yellow } & times & text { Tall Green } \ pi mathrm{T} & mathrm{Ty} & mathrm{Tt} text { yy }end{array} ) Gametes
Phenotypes Tall and Green ( =3 ) Dwarfand Gree war and Yellow
Total ( =8 ) Thus
a) Prooortion
(b) Proportion
61Which era is considered as the age of
62From which of the following crosses, ( boldsymbol{F}_{1} )
progeny showing maximum hybrid vigour can be obtained?
(1) ( A A b b times a a B B )
(II) ( A A b b times a a b b )
( (| I) ) aaBB ( times ) aabb
( (I V) A A B B times )
A ( . ) (II), (III)
B. (III), (IV)
( c cdot(1),(1 v) )
D. (I), (II)
63According to Darwin, adaptive ability is
A. Acquired
B. Mutation
c. Inherited
D. Branching descent
64Which one correctly describe
homologous structures?
A. Organs with anatomical similarities but, performing different functions
B. Organs with anatomical dissimilarities but performing same function
C. Organs that have no function now but had an important function in ancestors
D. Organs appearing only in embrycnic stage and disappearing later in the adult
65List in tabular form two distinguishing features between acquired traits and inherited traits, with one example of
66How did Darwin explain the existence of
different varieties of finches on the
Galapagos Islands?
67How many ( F_{2} ) plants having two dominant alleles typically dihybrid cross?
A . ( 6 / 16 )
B. ( 10 / 16 )
c. ( 9 / 16 )
D. 1/16
68What is biogeography? How do Darwin’s finches provide the biogeographical evidence in favour of evolution?10
69What are the differences between
inherited and acquired characters?
A. Inherited characters- characters that are passed on from parents to offspring. Acquired characters- characters appearing in an individual’s lifetime but cannot be transmitted to next
B. Inherited characters- characters appearing in an individual’s lifetime but cannot be transmitted to next
generation. Acquired characters- characters that are passed on from parents to offspring.
C. Inherited characters- characters that are passed on from offspring to parents. Acquired characters- characters appearing in an individual’s lifetime but cannot be transmitted to next generation.
D. Inherited characters- characters that are passed on from offspring to parents. Acquired characters- characters appearing in an individual’s lifetime and can be transmitted to next
70are the change in the function or structure of a living body which occurs after birth.
A. Inherited traits
B. Dual traits
c. Both A and B
D. Acquired traits
71Which was not proposed by Darwin?
A. Struggle for existence
B. Natural selection
C . Genetic drift
D. Survival of the fittest
72A tendril of a pea plant and phylloclade of Opuntia are homologous.
A. True
B. False
73A homozygous tall plant (T) bearing red
coloured (R) flowers is crossed with a
homozygous dwarf
(t) plant bearing white (r) flowers.
What is the phenotypic ratio obtained in
( F_{2} ) generation?
74Which of the following is an INCORRECT statement regarding genetic material?
A. Genes are made up of DNA
B. Chromatin is made up of DNA
C. Histones are proteins to which chromatin is bound
D. DNA is made up of genes
75Darwin was most influenced by :
A. Lamarck’s theory of acquired characters
B. Weisman’s theory of origin of species
C. Wallace’s theory of origin of species
D. Essay on Population by Malthus
76Exprience that a aquired traits during lifetime are not passed to the next generation justify?10
77‘Sexual selection’ in Darwin theory was
A. Wearest parttttt
B. Strong part
c. strongest part
D. None of these
78How are the areas study of evolution
and classification interlinked?
79were the first group of animals to evolve lung tissue requisite to support their respiratory needs without the use supplementary organs.
A. Trematoda
B. Amphibians
c. Reptiles
D. Aves
80In a complimentary gene interaction calculate the number of phenotype and genotype produced in a cross ( A a B b times )
( a a B B )
A. 1 phenotype, 2 genotypes
B. 2 phenotypes, 4 genotypes
c. 4 phenotypes, 4 genotypes
D. 2 phenotypes, 2 genotypes
81What is the percentage of ab gametes
produced by parents of genotype ( boldsymbol{A} boldsymbol{a} boldsymbol{B} boldsymbol{b} )
( ? )
A . 20
B. 25
( c .50 )
D. 75
8243. Which of the following process-
es is used for the production of
(1) Transamination
(2) Transcription
(3) Transesterification
(4) Translation
83Which of the following is considered as unit of inheritance?
A. Gene
B. Chromosome
c. Nucleotide
D. codon
E. Chromatid
84Number of genotypes found in ( boldsymbol{F}_{2} )
progeny of a dihybrid cross is
( A cdot 9 )
B. 6
( c cdot 3 )
85By the statement ‘survival of the fittest’,
Darwin meant that
A. The strongest of all species survives
B. The most intelligent of the species survives
C. The cleverest of the species survives
D. The species most adaptable to changes survives
86By the statement,’survival of the fittest’
Darwin meant that
A. The strongest of all species survives
B. The most intelligent of the species survives
C. The cleverest of the species survives
D. The most adaptable of the species to changes survives
87( ln mathrm{F}_{2} ) generation, quantitative
inheritance ratio ( 1: 4: 6: 4: 1, ) is
obtained instead of
( A cdot 9: 3: 3: 1 )
B. 8: 6: 4: 1
c. 7: 4: 1: 4
D. 6: 6: 4: 7
88Darwin’s finches provide evidence of evolution from
A. Anatomy
B. Morphology
c. Biogeography
D. All the above
89Which of the following conclusion is related to Lamarck?
A. Survival of the fittest
B. Inheritance of acquired character
c. Struggle for existence
D. origin of species by natural selection
90In postulating the theory of evolution by natural selection, Darwin was greatly influenced by
A. Mutation theory of Hugo de Vires
B. Lamarck’s theory of acquired characters
c. Malthus idea of population control
D. Environmental factors
91Which of the following are the two key concepts of Darwinian theory of evolution?
A. Genetic drift and mutation
B. Adaptive radiation and homology
c. Mutation and natural selection
D. Branching descent and natural selection
92Darwin said that all the organisms
A. With mutations
B. Uprightly
c. Prolifically
D. Independently
93Biological unit controlling heredity is
A. Genome
B. Chromosome
c. Genotype
D. Gene
94In which ship Charles Darwin went for his expedition?
A. siboga
B. Beagle
c. sea gull
D. Atlantic
95The theory of evolution proposed by Charles Darwin is known as
A. Theory of natural selection
B. Synthetic theory of evolution
c. Lamarckism inheritance
D. All of the above
E. None of the above
96Name the disorder which can be
considered both inherited and acquired.
A. Thyroid
B. Heart attack
c. Huntingtons
D. All of the above
97With the help of two suitable example, explain why certain experiences and traits earned by people during their lifetime are not passed on to their nest
generations.When can such traits be passed on?
98How is the equal genetic contribution of male and female parents ensured in
the progeny?
99According to Darwin, evolution is
A. A sudden but discontinuous process
B. A slow, gradual and continuous process
C. A slow, sudden and discontinuous process
D. A slow and discontinuous process
100The theory of natural selection was
given by
A . Lamarck
B. Alfred Wallace
c. charles Darwin
D. oparin and Haldane

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