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heredity vs. genetics

heredity
[huh-red-i-tee] / həˈrɛd ɪ ti /

noun

Biology.

plural

heredities

  1. the transmission of genetic characters from parents to offspring: it is dependent upon the segregation and recombination of genes during meiosis and fertilization and results in the genesis of a new individual similar to others of its kind but exhibiting certain variations resulting from the particular mix of genes and their interactions with the environment.

  2. the genetic characters so transmitted.

genetics
[juh-net-iks] / dʒəˈnɛt ɪks /

noun

(used with a singular verb)

  1. Biology. the science of heredity, dealing with resemblances and differences of related organisms resulting from the interaction of their genes and the environment.

  2. the genetic properties and phenomena of an organism.