2.9 Relationships Between Organsims

Question 1

Compare amino acids

Answer 1

Degree of similarity in sequence

Proteins compared to see if the antibodies of one species would respond to antigen of the other

Question 2

What is courtship behaviour?

Answer 2

A set of actions to attract a mate

Recognise members of own species
Identify a capable mate
Form a pair bond
Synchronise mating
Sexually mature

Question 3

What is DNA hybridisation?

Answer 3

Breaking DNA with heat and tagging a species with radioactive marker
Bonding DNA of two species
The higher the temperature, the more bonds broken, the more related