Neo-Lamarckism - August Weismann

cut off the tails of mice for many generations and showed that this mutilation had no effect on the tail length of their descendants.

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#Unit 8. Inheritance Biology

Linkage 

Tendency of two or more than two gene remain together during the course of inheritance.

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#Unit 8. Inheritance Biology

Coupling and Repulsion

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#Unit 8. Inheritance Biology

Type of Linkage 

Genes located close together on the same chromosome are called linked genes

Incomplete linkage, intermediate between the two extremes of independent assortment and complete linkage. 

ndependent assortment 

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#Unit 8. Inheritance Biology

Two type of recombination

Inter chromosomal recombination

Intra chromosomal recombination

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#Unit 8. Inheritance Biology

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#Unit 8. Inheritance Biology

The frequency of recombinant gametes is half the frequency of crossing over, and the maximum frequency of recombinant gametes is 50%.  Recombinant gamete = Half of the frequency of crossing over

50% = 100%