In class, we discussed Down syndrome and its cause. Which lab techniques allows us to diagnose someone with Down syndrome?   A. DNA sequencing to identify the mutations that cause Down syndrome.   B. Preparation of a karyotype.   C. A blood test to look for the virus that may cause it.   D. An IQ test.

Q: The Human Genome Project was created in 1990 as an international effort began to analyze the human…

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Q: What type of database is OMIM?

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Q: Please define following terms: 1.) Genetics 2.) Heredity 3.) Variation 4.) Chromosome 5.) Gene

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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.