Exchange of genetic material takes place in


Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be


A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants because


Which of the following statement is incorrect?


If 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


In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are
(i) large chromosome
(ii) small chromosome
(iii) Y-chromosome
(iv) X-chromosome


The maleness of a child is determined by


A zygote which has an X-chromosome inherited from the father will develop into a


Select the incorrect statement


New species may be formed if
(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


Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds produce F1 progeny that have round, yellow (RrYy) seeds. When F₁ plants are selfed, the F₂ progeny will have new combination of characters. Choose the new combination from the following
(i) Round, yellow
(ii) Round, green
(iii) Wrinkled, yellow
(iv) Wrinkled, green


A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?


Select the correct statement


If the fossil of an organism is found in the deeper layers of earth, then we can predict that


Which of the following statements is not true with respect to variation?


A trait in an organism is influenced by


Select the group which shares maximum number of common characters


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


From the list given below, select the character which can be acquired but not inherited

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Additional Information about Quiz on Chapter – Heredity and Evolution | CBSE Class 10 Science:

This quiz is based on Exemplar Problems and other important questions from the "Heredity and Evolution" chapter of the Science subject for CBSE NCERT Class 10 (X). It covers key concepts such as the laws of inheritance, Mendel’s experiments, traits, variation, natural selection, and speciation. These questions are designed to help students strengthen their understanding and improve problem-solving skills. For more such resources, visit the official NCERT website.

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