Artificial Selection Flashcards
inclusive fitness
statistical association of altruistic genotypes
- kinship or repeated interaction with relatives
Kin Selection
self- sacrificing behaviours should be selected again
eg assisting in care of siblings rather than reproducing, ant work and queen
Prisoner’s dilemma
Green beard genes
- do you share food with someone if they dont share with you? repeated interactios, everyone shares
- sign that tells others are altruistic, reciprocal altruism
Group Selection
- adaptations that benefit the group
- individuals follow a common code demonstrating good behaviours for the good of the group
Three social behaviours
- mutual benefit
- altruism
- selfishness
greenbeard allele
Dawkins, an allele that allows individuals to recognise green beards on others and grow one themselves.
e.g. amoebae signal each other when short of food, they have csA allele that can recognise this trait.
Artificial selection
eg pigeons
1. Darwin saw they scrutinise and select desirable traits
2. these are passed on
3. farmers plant seeds from largest tomatos