State and explain the ‘law of independent assortment’ in a typical Mendelian dihybrid cross.

Solution

Law of Independent Assortment (Third law) is based on inheritance of two genes, i.e. dihybrid cross which states that when two pairs of contrasting traits are combined in a hybrid, segregation of one pair of characters is independent of the other pair of characters. These factors randomly rearrange in the offspring producing both parental and new combination of characters means inheritance of one character does not affect the inheritance of another character and both characters
assort independently. The Punnett square can be used to understand the independent segregation of the two pairs of genes during meiosis. Linkage is the exception of law of independent assortment.

Some More Questions From Principles of Inheritance and Variation Chapter

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Principles Of Inheritance And Variation

State and explain the ‘law of independent assortment’ in a typical Mendelian dihybrid cross.

Some More Questions From Principles of Inheritance and Variation Chapter

Who were the rediscoverers of Mendelism ?

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What do the symbols square and circle in a pedigree chart indicate ?

Define heterogamy. Give an example.

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What term is used for the two chromatids resulting from the interchange of segments during crossing over ?

What is name of a cross in which a dominant individual is crossed with a recessive parent?

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