New Evidence for Evolution

Question 1

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

Answer 1

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

Question 2

Limitation of DNA profiling

Answer 2

DNA starts to degrade immediate after death

Question 3

How is evidence validated

Answer 3

Dedicated scientific journals
Peer review
Scientific conferences

Question 4

What are dedicated scientific journals

Answer 4

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

Question 5

What is peer review

Answer 5

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

Question 6

Suggest how DNA analysis could give further evidence

Answer 6

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