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Summary AQA ALEVEL BIOLOGY NOTES ON CLASSIFICATION USING DNA
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ALEVEL NOTES ON CLASSIFICATION USING DNA ADJUSTED TO THE AQA SPECIFICATION AND MADE FROM MARKSCHEMES
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= Classification Using DNA or Proteins=There multitude of been useful for
are a
technologies that have
clarifying relationships
•
evolutionary .
What can we
compare
between species to
investigate genetic diversity ?
1 The
frequency of measurable or observable characteristics
2 The base of DNA
sequence
3 The base sequence of mRNA
4 of DNA and mRNA
The amino acid sequence proteins encoded by
Gene
Technologies have changed how we
investigate Genetic Diversity
É of DNA has replaced from
Direct
investigation sequences inferring DNA differences measurable or
observable characteristics .
7
Investigating Variation
1- - - - - - ~ , - -
¥
→ Variation caused environmental factors
is
by genetic or .
Means
showing variation
•
may vary ,
.
A amount of
large standard deviation indicates a
large variation
•
.
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