Match the vocabulary word with the proper definition: enzyme that joins two pieces of DNA ✓ first human protein to be produced by genetic engineering 1. DNA ligase II. recombinant DNA III. transgenic crop ✓ process that makes many copies of a gene IV. polymerase chain reaction or other DNA segment V the process of isolating and making copies of a gene V the process of placing recombinant DNA into a living cell circular DNA that is not part of a chromosome genetically modified plants ✓ changing an organism by transforming with recombinant DNA V. gene cloning VI. genetic engineering VII. transformation VIII. plasmid IX. biotechnology X. insulin the use of technology to change the genetic makeup of living things for human purposes made by joining DNA from two different

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.