Principles of Inheritance
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Principles of Inheritance
Sample questions with model answers
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Given below are two statements: one is labelled as Assertion (A) and the other as Reason (R). Assertion (A): Mendel's law of independent assortment does not hold good for the genes that are located closely on the same chromosome. Reason (R): Closely located genes assort independently. In the light of the above statements, choose the correct answer from the options given below:
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Both (A) and (R) are correct but (R) is not the correct explanation of (A)
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The recombination frequency between the genes a & c is 5%, b & c is 15%, b & d is 9%, a & b is 20%, c & d is 24% and a & d is 29%. What will be the sequence of these genes on a linear chromosome?
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a, b, c, d
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In a test cross involving F₁ dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates
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the two genes are linked and present on the same chromosome
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Which of the following statements is not true of two genes that show 50% recombination frequency?
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The genes are tightly linked.
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