StemUp: AQA A level Biology 3.4.7 Investigating diversity
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7 Terms
What is interspecific biodiversity? (1)
Refers to the variation between organisms of different species
What is infraspecific biodiversity? (2)
- Refers to the variation within a species
- Between individual organisms
How can biodiversity be investigated using characteristics? (2)
- By measuring the frequency of observable characteristics
- Often by dividing the area into a grid and using random sampling
How can the amino acid sequence of proteins be used to investigate biodiversity? (2)
- Encoded by DNA and mRNA
- Can be analyzed to investigate biodiversity
How can the base sequence of DNA be used in biodiversity studies? (2)
- Can be examined to determine genetic similarities
- And differences between species or individuals
How can the base sequence of mRNA be used to investigate biodiversity? (1)
Can be studied to assess genetic relationships and variations
What indicates a close relationship between species or organisms? (2)
- The more closely related species or organisms are
- The more similar their genetic sequences are