Topic 4—C: Diversity and classification- 3. classification and using DNA proteins

Question 2

what technologies have been useful for clarifying evolutionary relationships?

Answer 2

genome sequencing
comparing amino acid sequence
immunological comparisons

Question 3

Genome sequencing

Answer 3

• the more closely related species are the more similarities they will have in their DNA
• DNA base sequence of one organism can be then compared to the DNA base sequence of another organism

Question 4

Comparing amino acid sequence

Answer 4

• closely related species will have similar amino acid sequences as they are coded for by the base sequence in DNA

Question 5

Immunological comparisons

Answer 5

• antibodies of one species will bind to the specific antigens on the surface of proteins in the blood serum of another species