• Heredity And Evolution - Quiz (MCQs)





    In which of the following methods of reproduction, the Exchange of genetic material takes place?

    (a) vegetative reproduction 

    (b) asexual reproduction 

    (c) sexual reproduction 

    (d) budding 

    Correct Option:


    Two pink coloured flowers when crossed resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross is 

    (a) double fertilization 

    (b) self pollination 

    (c) cross fertilization 

    (d) no fertilization 

    Correct Option:


    A tall plant (TT) and short pea plant (tt) when crossed resulted in progeny that were all tall plants because 

    (a) tallness is the dominant trait 

    (b) shortness is the dominant trait 

    (c) tallness is the recessive trait 

    (d) height of pea plant is not governed by gene ‘T’ or ‘t’ 

    Correct Option:


    Find the incorrect statement from the ones given below

     (a) For every hormone there is a gene. 

    (b) For every protein there is a gene. 

    (c) For production of every enzyme there is a gene. 

    (d) For every molecule of fat there is a gene 

    Correct Option:


    When a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant (rr YY), the seeds produced in F1 generation are 

    (a) round and yellow 

    (b) round and green 

    (c) wrinkled and green 

    (d) wrinkled and yellow Heredity and Evolution 

    Correct Option:


    In human males, which of the following chromosomes are not paired perfectly (i) large chromosome (ii) small chromosome (iii) Y-chromosome (iv) X-chromosome 

    (a) (i) and (ii) 

    (b) (iii) only 

    (c) (iii) and (iv) 

    (d) (ii) and (iv)

    Correct Option:


    How is the sex of a child determined in humans? 

    (a) the X chromosome in the zygote 

    (b) the Y chromosome in zygote 

    (c) the cytoplasm of germ cell which determines the sex 

    (d) sex is determined by chance 

    Correct Option:


    A zygote which inherits an X-chromosome from the father develops into a 

    (a) boy 

    (b) girl 

    (c) X- chromosome does not determine the sex of a child 

    (d) either boy or girl 

    Correct Option:


    Select the incorrect statement 

    (a) Frequency of certain genes in a population change over several generations and results in evolution 

    (b) Reduction in weight of the organism due to starvation is controlled by genes

    (c) Low weight parents can have heavy weight progeny 

    (d) Evolution doesn’t happen by the Traits which are not inherited over generations 

    Correct Option:


    In which of the following cases, new species may be formed

    (i) DNA undergoes significant changes in germ cells 

    (ii) chromosome number changes in the gamete 

    (iii) there is no change in the genetic material 

    (iv) mating does not take place 

    (a) (i) and (ii) 

    (b) (i) and (iii) 

    (c) (ii), (iii) and (iv) 

    (d) (i), (ii) and (iii) 

    Correct Option:


    Consider Two pea plants, one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds. When crossed, they  produce F1 progeny that have round, yellow (RrYy) seeds. When F1 plants are selfed, what will be the new combination of characters in the F2 progeny?

    (i) Round, yellow (ii) Round, green (iii) Wrinkled, yellow (iv) Wrinkled, green 

    (a) (i) and (ii) 

    (b) (i) and (iv) 

    (c) (ii) and (iii) 

    (d) (i) and (iii) 

    Correct Option:


    Identify the correct homologous structures in a basket of vegetables containing carrot, potato, radish and tomato.

    (a) Carrot and potato 

    (b) Carrot and tomato 

    (c) Radish and carrot 

    (d) Radish and potato 

    Correct Option:


    Select the correct statement 

    (a) Phylloclade of Opuntia and Tendril of a pea plant are homologous 

    (b) Phylloclade of Opuntia and Tendril of a pea plant are analogous 

    (c) Limbs of lizards and Wings of birds are analogous 

    (d) Wings of bats and wings of birds are homologous 

    Correct Option:


    If the fossil of an organism is found in the deeper layers of earth, what can we predict about the extinction of that organism?

    (a) the extinction of organism has occurred recently 

    (b) the extinction of organism has occurred thousands of years ago 

    (c) the fossil position in the layers of earth is not related to its time of extinction 

    (d) time of extinction cannot be determined 

    Correct Option:


    Which of the following statements is not true about “variation”? 

    (a) All variations in a species have equal chances of survival 

    (b) Change in genetic composition results in variation 

    (c) Selection of variants by environmental factors forms the basis of evolutionary processes

    (d) Variation is minimum in asexual reproduction 

    Correct Option:


    A trait or character in an organism is influenced by 

    (a) paternal DNA only 

    (b) maternal DNA only 

    (c) both maternal and paternal DNA 

    (d) neither by paternal nor by maternal DNA 

    Correct Option:


    Which of the following groups shares the maximum number of common characters?

    (a) two individuals of a species 

    (b) two species of a genus 

    (c) two genera of a family 

    (d) two genera of two families 

    Correct Option:


    According to the theory of evolution, formation of a new species is generally due to 

    (a) sudden creation by nature 

    (b) accumulation of variations over several generations 

    (c) clones formed during asexual reproduction 

    (d) movement of individuals from one habitat to another 

    Correct Option:


    Which of the following characters can be acquired but not inherited 

    (a) colour of eye 

    (b) colour of skin 

    (c) size of body 

    (d) nature of hair 

    Correct Option:


    The two versions of a trait (character) which are brought in by the male and female gametes are situated on 

    (a) copies of the same chromosome 

    (b) two different chromosomes 

    (c) sex chromosomes 

    (d) any chromosome 

    Correct Option:


    Choose the statements that describe the characteristics of genes 

    (i) genes are specific sequence of bases in a DNA molecule 

    (ii) a gene does not code for proteins 

    (iii) in individuals of a given species, a specific gene is located on a particular chromosome 

    (iv) each chromosome has only one gene 

    (a) (i) and (ii) 

    (b) (i) and (iii) 

    (c) (i) and (iv) 

    (d) (ii) and (iv) 

    Correct Option:


    When a pure tall pea plant (TT) is crossed with a pure short pea plant (tt), the ratio of pure tall plants to short plants in F2 is 

    (a) 1 : 3 

    (b) 3 : 1 

    (c) 1 : 1 

    (d) 2 : 1 

    Correct Option:


    The number of pair(s) of sex chromosomes in human zygote is 

    (a) one 

    (b) two 

    (c) three 

    (d) four 

    Correct Option:


    Who gave the theory of evolution of species by “natural selection” ? 

    (a) Mendel 

    (b) Darwin

    (c) Morgan 

    (d) Lamarck 

    Correct Option:


    Some dinosaurs had feathers although they could not fly whereas birds too have feathers that help them to fly. In the context of the theory of evolution, we can draw the inference that 

    (a) reptiles have evolved from birds 

    (b) there is no evolutionary connection between reptiles and birds 

    (c) feathers are homologous structures in both the organisms 

    (d) birds have evolved from reptiles

    Correct Option: ( )


    In evolutionary terms, we have more in common with

    A A Chinese school-boy

    B A chimpanzee

    C A spider

    D A bacterium

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Material : Class 10 - Biology

Topic : NCERT - Biology

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