Evolution Lecture 10 - Evolution and Design in Nature...

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Evolution and Design in Nature
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EVOLUTION Evolution changes in the genetic composition of a population over successive generations Gene – the basic unit of heredity, a segment of DNA that often has a particular phenotypic effect Population – a group of organisms in close proximity that can or do interbreed with one another Species – a class of organisms that can or do interbreed Phenotype – the evident characteristics of an organism: its structure, physiology, behavior Genotype – all or part of the genome of an organism
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Example : The Human Genome Genome – all the genetic information in an organism γίγνομαι γίγνομαι
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More About Genes: Metaphor : A DNA molecule is a long string of letters made up from a four- letter alphabet (A,G,C,T). The strings are divided into sentences named genes , basic units of hereditary information for making and operating a living cell. Chromosomes are strands of DNA and associated proteins that serve as the structural carriers of genetic information.
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There are two types of gene. One is to
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Evolution Lecture 10 - Evolution and Design in Nature...

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