BIS101 Lecture 1

BIS101 Lecture 1 - BIS101 Lecture 1 Between breeding and...

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BIS101 Lecture 1 Between breeding and transgenics, which one is more popular/effective? Breeding Give some examples of breeding? Baby watermelons without seeds, chiauaus vs. great danes, Mendel’s work What is genetics? Study of genes, genome, phenotype, and pleiotropy Why study genetics? - occupies a pivotal position in the entire subject of biology - central to numerous aspects of human affairs (Because it is the food we eat, and our pets, etc.) How must you study genetics? Must break down to discrete genes to study it What is a gene? DNA with a function (segment) What is a phenotype? An observable trait, must be measurable What is pleiotropy? One gene having broad effects Whats wrong with the central dogma? It is not valid for all DNA, some can go backwards in the order of things How must you study a phenotype? Must break it down to a chunk or discrete traits When studying phenotypes and genetics, etc, what must be present? Variation What is variation? Difference in trait What types of variants are there? Mutants and natural variants What are mutants? Organisms that have a mutation in their DNA, hence a difference in their proteins What are natural variants?
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