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14 Cards in this Set

  • Front
  • Back
What is classification?
Classification means placing organisms into similar groups
What is the science of classifying organisms?
Taxonomy
What is the basic unit of classification?
Species
What is a species?
A species is a group of similar organisms capable of interbreeding to produce fertile offspring
What is variation
Variation is the difference between members of a species.
The variation within a species may be..
Acquired or inherited
What is acquired variation?
Acquired variation is non-genetically controlled variation
What is inherited variation?
Inherited variation is genetically controlled variation
What is heredity?
Heredity is the passing on of features from parents to offspring by means of genes
What is a gene?
A gene is a section of DNA that causes the production of a particular protein
What percentage of chromosomes is protein?
60%
What percentage of chromosomes is DNA?
40%
What is junk DNA?
Non-coding DNA
What holds DNA folded in the nucleus?
Protein