New Evidence for Evolution Flashcards

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1
Q

What are the limitations of using fossils to show evolutionary relationships?

A

Fossils only form from organisms with stiff structures. So if their is a weaker part of the body it more likely to become decomposed

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2
Q

Limitation of DNA profiling

A

DNA starts to degrade immediate after death

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3
Q

How is evidence validated

A

Dedicated scientific journals
Peer review
Scientific conferences

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4
Q

What are dedicated scientific journals

A

any research carried out must be published in at least one journal so it can be read by other scinetists

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5
Q

What is peer review

A

the editor of the journal sends the paper to 2 or 3 scientists in the same area of work

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6
Q

Suggest how DNA analysis could give further evidence

A

similarity of DNA indicates closeness of relationship
because genes are sections of DNA
genes are the codes for protein

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