How crossing over differs from linkage?

1.	How crossing over differs from linkage?
Answer» Linkage: 1. The genes present on chromosome stay close together. 2. It involves same chromosome of homologous chromosome. 3. It reduces new gene combinations. Crossing over: 1. It leads to separation of linked genes. 2. It involves exchange of segments between non-sister chromatids of homologous chromosome. 3. It increases variability by forming new gene combinations. Leading to formation of new organism.

Answer»

Linkage:

1. The genes present on chromosome stay close together.

2. It involves same chromosome of homologous chromosome.

3. It reduces new gene combinations.

Crossing over:

1. It leads to separation of linked genes.

2. It involves exchange of segments between non-sister chromatids of homologous chromosome.

3. It increases variability by forming new gene combinations. Leading to formation of new organism.

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