Give differences : Crossing over and Linkage

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Question

Crossing over
			Linkage
		
		
			 $(1)$ It leads to separation of linked genes.
			 $(1)$ Keeps the genes together.

Vedclass · Accepted Answer

Vedclass · Answer

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.

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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.

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.