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05/01/2022 6:32 pm
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In a dihybrid cross, if you get 9 : 3 : 3 : 1 ratio, it denotes that
(a) The alleles of two genes are interacting with each other
(b) It is a multigenic inheritance
(c) It is a case of multiple allelism
(d) The alleles of two genes are segregate independently
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05/01/2022 6:33 pm
Correct answer: (d) The alleles of two genes are segregate independently
Explanation:
Based upon such observations on dihybrid crosses (crosses between plants differing in two traits) Mendel proposed a second set of generalisations that we call Mendel’s Law of Independent Assortment. The law states that “When two pairs of traits are combined in a hybrid, segregation of one pair of characters is independent of the other pair of characters”.