•Crossing over gives the evidence for linear arrangement of linked genes in a chromosome. 2. Crossing over helps in the construction of genetic maps.
3. Crossing over results in the production of new combinations of genes & hence the genetic diversity.
•If crossing over did not occur during meiosis, there would be less genetic variation within a species. ... Also the species could die out due to disease and any immunity gained will die with the individual.
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Answer:
•Crossing over gives the evidence for linear arrangement of linked genes in a chromosome. 2. Crossing over helps in the construction of genetic maps.
3. Crossing over results in the production of new combinations of genes & hence the genetic diversity.
•If crossing over did not occur during meiosis, there would be less genetic variation within a species. ... Also the species could die out due to disease and any immunity gained will die with the individual.