Essay 2: The causes of variation and its biological importance

The causes of variation and its biological importance:

  • Interspecific variation vs. Intraspecific variation
  • Natural Selection
  • Mutations in DNA (and the effect on species and gene pools- immunity to dieases/ adaptions to environment)
  • Antiobiotic resistance
  • Prevent inbreeding
  • Homozygous recessive disorders
  • Allopatric speciation/ Sympatric speciation
  • No variation and its

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