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AQA Biology A Level > Invesitigating Diversity > Flashcards

Invesitigating Diversity Flashcards

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1
Q

What are the methods of investigating diversity

A

Observable characteristics
DNA base sequence
mRNA base sequence
Amino acid sequence of proteins

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2
Q

What is the observable characteristic method and it’s issues

A

Similarities and differences of phenotype used as measure if assuming characteristics are coded by genes

However :
Characteristics may be changed by environment
Many traits caused by more than 1 gene

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3
Q

What is DNA base sequence method

A

Fluorescent dye attached to each base, analysis by computer programme. similarities between organisms base sequence help discover evolutionary relationships

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4
Q

mRNA base sequence method

A

Can be used to see DNA sequence using complementary mRNA bases

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5
Q

Amino Acid sequence of proteins method

A

Scientists count the number of similarities and differences and see which species share similar sequences

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AQA Biology A Level (103 decks)

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