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Heredity

Heredity is the " transmission of genetic characters from parents to offspring" (Dictionary.com).

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Variation is a key factor in heredity because it allows for an offspring of a species to evolve/mutate and be different from its parents (diversity). These mutations are crucial because :

  • The mutations can help the species survive in their environment due to the fact that "variation drives the process of evolution"(Mrs. Momchilov)

  • The mutations can "increase the opportunity" of the species to "survive a given disease"(Mrs. Momchilov)

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Heredity involves a step called Meiosis which is the "division of a germ cell" where the nucleus splits and "four gametes [rise]...each possessing half the number of chromosomes of the original cell" (Britannica).

 

 

 

 

 

 

 

This basically means that during the Meiosis process, the replication and distribution of DNA occurs and new genetic combinations are created.

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