Give differences : Crossing over and Linkage
 

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Crossing over Linkage
 $(1)$ It leads to separation of linked genes.  $(1)$ Keeps the genes together.
 $(2)$ It involves exchange of segments between non sister chromatids of homologous chromosomes.  $(2)$ It involves individual chromosomes.
 $(3)$ The frequency of crossing over can never exceed $50 \%$.  $(3)$ The number of linkage group can never be more than haploid chromosome number.
 $(4)$ It increases variability by forming new gene combinations.  $(4)$ It reduces variability.

 

Similar Questions

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Definitions / Explanation : Linkage
 

Assertion : In case of incomplete linkage, linked gene show new combination along with parental combination.

Reason : In case of incomplete linkage, linked genes are separated by crossing over.

  • [AIIMS 2010]