Investigating Diversity

• What do individuals of the same species have in common?

  Their behavioural, morphological (structural), and physiological (metabolic) features.
• What is genetic diversity?

  The number of different alleles of genes.
• What does genetic diversity measure and look at?

  Characteristics, DNA base sequences, mRNA be=ase sequences, and protein sequences.
• What is the quickest but least reliable form of determining genetic diversity?

  By comparing characteristics.
• What do we use if two species can't be distinguished from observed characteristics?

  Measurable characteristics.
• What has replaced observed characteristics to determine genetic diversity?

  DNA base sequence analysis.
• What do DNA base sequences determine?

  Evolutionary relationships.
• What does it mean if two species have more similar DNA base sequences?

  That they are more closely related species and have been separated more recently than species with less similarities in their DNA.
• Why are proteins and mRNA easier to isolate than DNA?

  As multiple copies are usually found in the cytoplasm.